ok, his charge up down +C proximity grab is different than other ones...
other proximity grabs will not come out if the opponent is in range but knocked down or under throw protection, but this one does. It lets you set up the grab as a meaty such that the first hit connects just as they get up (and is unblockable). Pretty much any knockdown or even reset, can lead back into this grab and the opponent's options are very limited. Even if the opponent jumps out, it will hit them out of the air and Robert can followup with D flash kick.
also f+A not just leads to proximity grab but also links to crouch C in the corner.
The corner super combo off of the proximity grab is pretty simple actually...just do qcfx2+D super immediately after the grab, then flash kick. There isn't any trick to it, just do it right away.
f+A links into qcfx2+K.
stand CD is a really good normal...good range, speed, hitbox/hurtbox. Very abusable.