This seems more promising than the other infinite.
(Shadow Moses) vs. Lucas
I was able to down tilt the Lucas into the wall from 0-160 without his escaping. Initially, he bounced from the wall to the ground and then back after I would hit him again. About halfway through, he began to have a certain animation of staying near the wall. Once Lucas hit 160, I hit him against the wall and he bounced behind me.
(Corneria) vs. Ike
I was able to down tilt the Ike into the wall from 0-180. Tested twice, 180 was the magic number. Once Ike hit 180, I hit him against the wall and he bounced behind me.
I'll do more extensive testing tomorrow.