The corner loop still exists in PC V.B. The key to the corner loop is in the timing, which is a pretty small window. As for the 2A bit, the corner loop does require a certain distance away in order to hit correctly, along with timing. Usually it's really ideal for sprite to sprite corner 2A 2B 2C 5C (LH) 236 B (charge), gives you right distance. However, I find that if you're not in the ideal corner area, say a surprise 2C 5C 236B about 1.5 2 sprite widths away, you just can't reach it.
Putting the 2A 2B 2C is really pushing it in general for cornerloop (2B adds to the backing away), so if you're going for it, generally if you have a direct from first hit (5/2A) to 2C, you're liable to be more successful due to the lessened distancing away.
But in my opinion I personally just like to worth with the wallbounce recovery > 22C to blockstring or j. C (charge).
Hope that helps a bit.
~Chun