What's the best way to get a df.C into any follow up?
Uh, 2C 3C and you can just do 6C for a projectile, or you can do 6236D, or maybe even ~8C depending on how long 2C was held.
Returning to neutral isn't that great unless depending on the motion.
There's a glitch (or something) that disables inputs while you hold a button down. If you're going to do something like 2C 6B and don't want to reset it to neutral, hold C until you move the stick to 6. Not sure how relevant it is to KOFXIII, as I've never actually touched it so far, but I'm fairly certain it wouldn't have been removed.
You speak of the "Sticky Method", I dunno if they still have it in XIII, I must test it out the next time I'm out in the arcade.
For those who aren't familiar: In '98 (and various other years), characters like Iori and Takuma who both have qcf+P motions (projectiles) had a hard time doing d.B, d.A, f+A, qcf~hcb+P DMs as the f+A would often caused them to do a projectile instead.
IIRC, the trick was to disable the buffering by holding down the B. So d.B (hold B), d.A, qcf+A (does a f.A) (release B), hcb+P.