I would also suggest to just go into raw PO and doing the a:6 motion by itself first just to get the rhythm of it, then try to get the 6A+B4 PO a:6 down. Once you get that rhythm down, you should be able to get that 4 hit combo from 6A+B4 every time as long as you remember not to rush into the...
What problems exactly are you getting with it? Remember that it's a 14f high with not much range, but knocks down on normal hit, and gives you a small combo on ch. You're usually going to want to use this as a punish more than anything.
IIRC, Viola's SET 3B is -14 on block, so you can do a 4B or 3KK to punish instead of just AA, all depending on range, but I don't remember the range on her 3B being all that great anyway, so you could either use 4B or A:6 to punish for better damage than 3KK or AA.
To add to the thread about 16 frame punishers, there is also Natsu's 3B to consider as an option. Fleshmaster mentioned this in one part of his reply, but in any case, I would consider 3B, A:6 to be the optimal 16 frame punish whenever possible.
I'd like to second the notion that it's impractical due to cost, especially when you consider everything else you could have done with the meter instead. I would also like to point out that if that extra damage will close out the match, then it would be worth it, so add super-situational to the...
Zanaken: You could just do PO 466B+G instead of doing the PORC right there. Just remember to hold the 4 a bit longer than usual when you do the PO shift so it'll register the 4 input, then do 66B+G for the PO throw.
I'd been having trouble with 3B A:6 recently as well, but I realized that if you wait til they fall just around head level for Natsu before inputting the A, it'll come out more consistently. At least that was my problem anyway: I was hitting the A way too early. Still not consistent with it...
Yea, I know about the A:6 W! A(:)6 W! into the rest, but I just wanted to see if it was possible to squeeze in an extra WS K in there. The bnb wall combo is definitely way more reliable, just wanted to be a bit flashy. :P And the second A6 doesn't even need to be a JF, btw, since the first hit...
Hmm, just came across this just now:
(FC A+B) A:6 W! 3B W! WS K, 6A+B4 PO, A:6, 3KKK, 4A+B_1A_K2(?)_CE
This requires a very specific distance from the wall, and I have so far not been able to get K2 to connect on Pyrrha, plus CE seems only to hit once.
Edit: CE seems to hit all 3 times if...
I was able to connect on Viola every once in a while for some reason though. Seems like it had to do with when I threw the PO A:6 out, but nevertheless, it felt like a very tight window for it to connect. Kinda felt like I had to delay the A:6 just slightly, but the whole thing comboed. And...
11_77A is actually low, high. And I think you're talking about FC 3K,K. Guide says that first hit is -16 on block, and 2nd hit is -9, but the 2nd hit might have already been changed in a similar fashion to WS K. So yea, that's not actually safe either.