forget c.fwd linked into c.fwd if you wanna do scissors or psycho at the end. unless the first fwd hits counter or is meaty, it’s not worth the risk. besides - at this range, you’d be better of starting the combo with his 2 frame c.jab.
if you need more charge time, do his c.short linked to c.jab linked to either s.short or c.fwd. this 3 hit combo gives comes very very very close to covering the entirety of bison’s charge time. it’s usable for shit like body hopping, combo into scissors. after a body hop, shit like c.jab, c.jab, c.fwd does NOT give you enough charge time.
if you’re crossing up with a jump-in, the regular c.jab, c.jab, s.short or c.fwd works fine, just hold toward on the stick while you’re in the air, which becomes back after you cross up.
i recommend ending combos with scissors most of the time, as opposed to onikage’s recommendation of psycho because scissors gives you a guaranteed c.rh after the combo to build meter, punish quick getup, and move in closely to the opponent while maintaining charge. also, fwd. scissors gives you the option of body hopping them after the knockdown using 2 dashes. unless you psycho them when they’re near the corner, you’ll end up a full screen away from your opponent after a psycho, which may or may not be a bad thing, depending on what the situation is in the match. but in general, i think scissors is best.
of course there’s fancier links and shit with bison, but this is all you need as far as combo into scissors or psycho apart from a few easy links off meaty c.fwd.
and who cares about scissors into mega psycho crusher? you’ll land 30 customs in A groove before you land that combo in C groove, so unless you’re going for style points, f that.