Have never seen anyone use this…
In the left hand corner only: EX palm > While the opponent is in the air, Close Standing HK as soon as possible so you hit the opponent in the air with the top of your kick > Immediately diagonal jump MK > follow up with full combo
The MK will not cross up in the left corner, and you’ll land on the same side you started on, so it looks very tricky. If the opponent has figured this out, you can delay the close standing HK a fraction of a second, Jump MK and it will cross up (you’ll land in the corner).
Tested this against several characters in the lab and it causes Shoryuken to whiff as well as all the 4 frame wake ups (Cammy, Guile, Fei Long etc.). You can do the same reset in the right corner with J. LK but cannot combo after. I don’t think the MP after the J.MK is a true blockstring (you can shoryuken through it) so use MK if you can’t risk it.
Anyone have any other good set ups for the fake cross up with MK in the left corner?