KENJUSTU
The best damage I've gotten meterless on a 50/50 is this, hunting for a better option:
(F2/B3)~db1, d1~db4 22/20% Can get an extra percent with bf3 as the ender if you don't mind the position switch.
Pretty basic stuff, but I like going for the 50/50 after ex db4 even if I'm out of meter. If you get it it's like 42% for a bar, if you don't you're at -10.
Also,
@FrothyOmen, why are you using the bf2 ender in your 50/50 list? db4 is 1% more damage and it seems bf2 leaves them out of range for anything that you could use the extra frame advantage for.