6P to 214[S] linking difficulties

[NedDestros]

I've been practicing the posted dizzy combos that have been posted and the only ones that I'm having an overwhelming amount of trouble on are the 6P to 421 combos (the one that starts the bubble loop). Something about the spacing is very inconsistent and 421 completely whiffs (for the first hit where it appears). I pulled it off ONCE against Slayer and it never happened again...

If it helps this is the combo I'm trying to pull off -->

In Corner (Vs crouching):

IAD j.2s j.H (land) short dash c.S 6P 214 j.H 214K ]S[ (pop) (land then jump) j.K j.S jc.S j.D

any and all help would be awesomely appreiciated. I apologize if this has already been answered, I read through all the guides beforehand that I saw were stickied so feel free to lock or delete if if so

[NedDestros]

ah forget what i said, i found the answer by doing a google search that linked me here.

[Mjskillz]

I keep forgetting what c.S means? DAMN Tekken to GG - >_<;