Does proration affect how long you can hold a combo, as well as damage?

[Yatta!]

Or perhaps there's another term for it? The thread title may not have explained what I'm asking well, so below I'll have two combos to explain what I mean (these are Hazama combos)

Hazama Combo#1 (this one works)

5C(2) > 236236B > dash (s)214D~C > 6C > dash 5C(2) > jump cancel > j.Cx5 > 2C > 4D~D > j.5B > j.5Cx2 > double jump cancel > j.5Cx5 > 214B

Hazama Combo#2 (this one doesn't work). This one is almost the same as the previous, the only difference is the beginning

5D~D > j.B > 236236B > dash (s)214D~C > 6C > dash 5C(2) > jump cancel > j.Cx5 > 2C > 4D~D > j.5B > j.5Cx2 > double jump cancel > j.5Cx5 (breaks here) > 214B

As marked above in bold where the combo breaks (at the end of the combo), after two or three j.5C attacks, the opponent can airtech freely. Why is that?

I would have asked this in the Hazama boards, but I figure this is something that affects every character in the game, so it should be in a more broad board.

Edited June 19, 2012 by Yatta!

[shtkn]

you are correct. more details here.

http://www.dustloop.com/wiki/index.php?title=Damage_(BBCSE)#Hitstun_Decay

[Yatta!]

I see, I see. Thanks much!