Can you give me the entire breakdown of the first combo you're talking about, because the 2B 5C route always does more damage whenever I try it.
Ex : 5C 236A 3C 2C [jC] jA jB 3C 236A x3 does 3091
whereas 5C 236A 3C 2B 5C jB(2hits) jC 3C 236A x3 does 3148.
I just tried it with every single comfirm I know, and the only reason why this route can possibly do less damage, is when it's just impossible to do it because of hitstun decay.
There's actually a trick to get more consistent (at least it worked for me) : when you're doing 3C 2B 5C, instead of doing 2B > 5C as a late gattling, use the regular gattling timing, but charge the 5C a little bit.
The trick is to hit with your 5C as low as you can. Besides, if you're able to see that the opponent will be too high to hit them with 3C, you can do :
2B 5C jB(2hits) jC 5B 214B
Does less damage, but it's better than letting your opponent tech.
PS : This route works pretty well on Eltnum, just tried it =D And when it drops, it's not because of the jB, it's because I messed up the height, so she drops out of the combo right before the 3C