Eeeeeeeeeh, it still gets in the way. Honestly, I've got most CW's, and more Cancers than even the most hardened skeptic could take as anything but a bad omen for a ginger
And no, cancer SEVERELY obscures the slopes.
OKAY, TIME TO SETTLE THIS.
Here we go, I've now done the full 10 rounds with each. Each set may be viewed separately inside the spoiler, for those of you that REALLY want to be difficult about it, but yeah. I think my non-testing observations are pretty noteworthy.
I didn't use a REAL top-tier for defence, because, lets be honest, you won't see a noticeable difference in results, You're not really going to get under BD145 enough to use the slopes, and 230 is obviously only going to be beaten by lucky hits, so yeah. Basalt is also heavy, SO, yeah, I didn't use a proper top tier defense, but this was only done so we can actually observe the difference made by using different CW's, which is, in what I've learnt, at least, a legitimate means of testing..
All testing done in BB-10 TT Attack Stadium, Beylauncher, Libra shoots first. CS worn but not that aggressive. RF pretty much prime. Draws were re-done
MF Screw
Cancer 90RF vs MF Libra GB145CS
Screw Cancer: 6/10, All KO
Libra: 4/10 2 OS, 2 KO (both rebound off wall)
1 Draw, Double KO
Cancer Win Rate: 60%
MF Screw
Pisces 90RF vs MF Libra GB145CS
Screw Pisces: 8/10, all KO
Libra: 2/10, 1 KO, 1OS
1 Draw, Double KO
Pisces Win Rate: 80%
MF Screw Cancer 90RF vs MF Libra GB145CS
Libra Launched First, CS worn but not that aggressive. RF pretty much prime.
Screw Cancer: 3/5, All KO
Libra: 2/5 1 OS, 1 KO (rebound off wall)
MF Screw Pisces 90RF vs MF Libra GB145CS
Libra Launched First, CS worn but not aggressive. RF is pretty much prime.
Screw Pisces: 4/5, all KO
Libra: 1/5, KO.
Second Set: MF Screw Cancer 90RF vs MF Libra GB145CS
Libra Launched First, CS worn but not that aggressive. RF pretty much prime.
Screw Cancer: 3/5, All KO
Libra: 2/5 1 OS, 1 KO (rebound off wall)
1 Draw, Double KO
Second Set: MF Screw Pisces 90RF vs MF Libra GB145CS
Libra Launched First, CS worn but not aggressive. RF is pretty much prime.
Screw Pisces: 4/5, all KO
Libra: 1/5, OS.
1 Draw, Double KO
While Screw still hits like a bus using Cancer, it seems to hit noticeably harder with Pisces. Maybe I'm a little biased, but it does seem to hit noticeably harder, KOing libra in the first couple of hits, whereas using cancer, it's normally a bit longer.
And yeah, these results were actually more pronounced than I expected (I expected one difference), but that's how the cookie crumbled.
And yeah, I'm using a metal face on screw, it needs it these days if it wants to have a chance against basalt, so even though it mightn't have needed it against these combo's, it wouldn't make sense not to use one.
I feel sorry for screw, it arrived just too late to be famous, even Ray got to be top tier, and that's pretty laughable by comparison.
Anyway, my summary essay thingo:
Just remember,
you want to have as little plastic in the way of the Slopes of Screw as possible, Pisces isn't choses for it's jagged shape, those "spikes" don't touch the opponent. It's chosen because it has a very low profile, at least near the edge of the wheel. You don't want plastic blocking your metal, same goes for vulcan IMO (though that comes with an excellent CW anyway, Byxis might be a good choice for that, too). It's simple, basically, you want more smash? Metal on Metal is more violent than plastic on metal, so you want your plastic out of the way of your metal.
In this case, you want to let Screw get it's second slope (with the spike up at the end), get under the opponent, so it gets lifted by the spike and the following "Smash-Head/Slope" would either further lift it, or Smash it out (not sure which happens, but yeah). It's more of an "Upward Smash" than an upper attack, but it has similar, if more dramatic and recoil-causing, results.
While the "smash heads" do decently by themselves, if you block screw's second slopes, you block it's potential.
I suspect this is why I got such superior results to early testing, because everyone used capricorn by default, and that definitely obscures the slopes.