Phantom
Phantom is chosen obviously for its excellent Stamina and good Attack potential when in Attack mode. Scythe's PC Frame blocks attacks nicely, but Phantom relies on its low height and its opponent's recoil to avoid a deadly hit. Phantom is also chosen over Duo because the intent, while unusual, is to expose as much metal and Attack power as possible; Duo's low shape and smooth surface unfortunately make it unacceptable as a choice.

Cancer/Cygnus
Cancer and Cygnus are both heavy Clear Wheels that offer excellent Stamina potential on Phantom.

85
The lowest Track in existence, 85 allows Phantom to avoid the brunt of opponents' attacks, and causes their recoil to send them up and away. It also gives Phantom a good deal of stability and balance due to the low COG it provides.

RB
RB is a very strong Defense tip, and has some aggressive movement which aids in landing KOs against Stamina. It also does not have RDF's scraping issues when Force Smashed, which Phantom will have to tolerate quite a bit. It's also tall enough and re-balances quickly enough that, in my experience, Phantom has never floor scraped because of Force Smash other than at the very end of the battle, when Phantom was doomed anyways. I tried CS, but it didn't have enough Defense power. RSF is a good secondary choice if you don't have RB.

Metal Face Heavy
The MF-H gives Phantom more Defense ability and more Attack power, and dampens its own recoil.

(Sep. 25, 2013  1:40 AM)Cake Wrote: WOO TESTING RESULTS

I've been using MF-H Phantom (Attack) Cancer 85RB, since atm that's my favorite variant - don't worry, I'll do CS tomorrow.
I'm fairly sure there's a trick to get RB to move in a flower pattern, but it is not a Sliding Shoot. A regular bank causes RB to just Tornado Stall very, very slowly. Instead, RB must be banked in reverse- so that the beyblade faces away from the center, exposing RB's edge to the stadium floor. This makes it move in a quick, loose flower pattern. I'm having difficulty controlling it (it often winds up Tornado Stalling when I don't want it to, or attacks when I want it to stall) so the results aren't as good as I would like.

That is, except against Attack.
Attack testing-

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vs. Wyvang Begirados CH120/CH145RF

120 height-

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Wyvang wins: 5
Phantom wins: 15
Phantom win %: 75%

145 height-

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Wyvang wins: 5
Phantom wins: 15
Phantom win %: 75%

While Phantom put up an impressive 75% win rate against Wyvang at both heights, I felt like it did better against 145 height - two of CH145's wins were random flukes, including one where Phantom was destabilized and ran out on its own, something that never happened again in the other 69 rounds of testing. Also, Phantom KOed Wyvang several times at that height, and seemed to do better in general. Also in CH145's favor was that the 145 testing was done second, after I had gotten a bit better at Sliding Shoot with it. Furthermore, I did everything I could to make it the least fair for Phantom, launching Wyvang directly next to/into/onto Phantom then Wyvang was launched second. Wyvang only had a chance when it was able to hit Phantom once to knock it to the Tornado Ridge, and then immediately hit it again and out. If Phantom lived through the first few seconds, which it did often due to RB's evasive aggro movement, it was pretty much safe.

I also did informal testing with Balro as the bottom Wheel, but Balro did even worse than Wyvang against this combo - it self-KOed almost every time. BD145 Attack combos didn't do much either, because BD145 was really the only thing making contact with the extremely low Phantom.

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With RB, the results against Stamina were disappointing. I still don't have RB's aggro launch down yet, so I had a lot of difficulty getting KOs consistently.
Stamina testing-

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vs. Revizer Dragooon SA165EWD

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Dragooon wins: 10
Phantom wins: 0
Phantom win %: 0%

This was very, very disappointing. Phantom could usually OHKO Revizer Dragooon on my aggro CS, but on RB I couldn't get it to be aggressive enough to KO consistently. Even when I did get a good hit, it wasn't as powerful as CS's were, and they didn't quite reach the edge of the stadium.

In informal testing, Phantom didn't do well against BD145RDF and SA165RDF Dragooon variants, even with Tornado Stalling. CS did quite a bit better in that regard, since RB was hard to stall properly.

vs. Death Cancer W145WD

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Death wins: 12
Phantom wins: 8
Phantom win %: 40%

By this time I was quite a bit better with RB's aggro motion than I was against Dragooon, and that combined with Death's much lighter weight made it considerably easier to win against. Again CS did much better here - it walloped on Death with ease - but RB did fairly well. I certainly wouldn't choose this combo if my opponent might use Stamina, not unless I become a master with RB, but it's much better results than, say, Scythe Uranus 85RS would get. Duo would probably be more effective against Phantom, but I don't have one atm, and GuardianRevizer will never let me use his

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EDIT: On a semi-related note, all 70 rounds of testing and untold numbers of informal rounds have scraped/polished my once-oxidized Phantom to the point where, along the outer edge, I can see a fuzzy refection of myself.

Revizer Dragooon SA165RDF/EWD/WD
Wyvang Dragooon BD145RDF
Revizer Killerken BD145/SA165RDF

Defense-Stamina hybrids and RDF in general

MF-H Phantom Cancer 85RB vs. Wyvang Wyvang W145R2F
Phantom launched first on all launches. Pretty darn new RB, worn R2F ()
Cancer: wins, 4/10 (All OS)
Wyvang: wins, 6/10 (3 KO, 3 OS)
MF-H Phantom Cancer 85RB win rate: 40%

Disregard Wyvang's out-spins.... that absolutely would not have happened with a good R2F. They were nail-bitingly close... WOW this thing is cool. Wyvang kept just slipping off Phantom's sloped ridge whenever it made contact. The only time it could KO is if Phantom glided up the tornado ridge and Wyvang hit from inside.

TBH, I definitely wouldn't pick this over Scythe (Scythe 85RB people, boss), but it's definitely viable. If you don't own scythe then would definitely be a cool idea IMO.

(Sep. 27, 2013  1:20 AM)Cake Wrote: MOAR RESULTS-

Same customs as before. My RF is getting worn out, particularly after the last round of testing, and my new one isn't conditioned yet, so I'm still using the old one so my numbers may be a bit skewed in Phantom's favor here.
CS performed much more admirably against Stamina than RB, but did a lot worse against Attack. However, I'm just not that great with CS, so I had difficulty against Stamina - half of the wins by Death were from accidental Tornado Stalling or Wall Saves. Revizer Dragoon was still hard to KO, despite CS's aggro movement; it's just too heavy and Phantom is too low to get good metal-on-metal contact with SA165 in the way.

Vs. Attack:

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Wyvang Begirados CH120/145RF

120 height:

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Wyvang wins: 10
Phantom wins: 10
Phantom %: 50%

145 height:

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Wyvang wins: 10
Phantom wins: 10
Phantom %: 50%

Phantom did not do well against Wyvang. It only won when it could avoid hard hits from Wyvang through its aggressive movement, and these results are with a worn RF. Phantom simply would not have survived if RF was in top condition. I wouldn't choose Attack against this custom, but nor would I choose this customs against Attack. Phantom did get some impressive KOs though, (yes KOs lol) using Wyvang's recoil and its own Upper Smash to launch Wyvang out of the stadium several times.

Vs. Stamina

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Revizer Dragooon SA165EWD

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Revizer wins: 8
Phantom wins: 2
Phantom win %: 20%

I immediately saw how this was going to go... Revizer is so heavy and SA165 gets in the way too much, so Phantom really didn't have much of a chance. Sometimes I nearly got a KO, and I expect someone more adept with Attack than I am could get much better results here.

Death Cancer W145WD

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Death wins: 10
Phantom wins: 10
Phantom win %: 50%

I expected better than this, honestly. The main issue was my CS's uncontrollable aggro movement; I really couldn't get it to maintain a flower pattern for any length of time. Death got KOed often, but if Phantom Tornado Stalled (which also happened often) it was pretty much over. However, unlike on RB, Phantom managed to destabilize the Hades Kerbecs out of Death several times, and won by causing Death to floor scrape massively, even flipping it over completely once. Again, a more Attack-gifted blader could probably get much better results here.