Cygnus is the only other thing I've heard people say seems really good on Phantom, so I do want to try that, just holding out for the sonokong release before I stock up on stuff like that.
I might do 10 rounds or so of MF-F Phantom Cancer 230D vs MF-H Duo
Cancer 230D if I get time.
But yeah, back to the topic, I might use this at a tournament (it would do really well in a lot of metagames), but then my Duo is pretty much dedicated to defense and I have my phantom for stamina, haha.
That said, this does have a pretty cool advantage, don't let the flash results fool you (Flash is basically "Dan with Variares" for everyone, and I don't think there are many things that could beat it if they had to use 230), this is significantly harder to KO than a regular stamina combination, as well as, from what I've seen, doing just as well as, if not better than, a regular Duo stamina combo.
As for battles against defense, I'll try some stuff after dinner, hopefully get something formal done. Curious to see how this does against BD145RF defense, as well as perhaps an aggro RDF. Only way defense is beating this is with KO's from what I've seen.
It's probably for everyone to keep in mind that in the tests I'm choosing I am being somewhat "mean" by choosing things I am pretty sure will beat this. Uwik's results are generally more representative of this combination's capabilities. You'll note I've suggested putting it on the competitive combo's list based on everything I've seen in testing, videos, personal use, and tournament performance. It really is one of the best Duo combinations