Need help understanding Kens ambiguous crossup



So everyone knows Kens most basic ambiguous crossup witch is his super jump after landing a Shippu, the opponant appears to need to guess which side you will land on. However when I was playing a Ken mirror match, I lost to a Ken who uses this a lot because there were inconsistancies as to when which player (p1 or p2) would crossup or not with a simple superjump after the shippu, and consiquently I ate a lot of damage for blocking the wrong way when i was sure he was/wasn’t going to crossup and was wrong. I was talking to C-Royd and he said that there were instances where p1 will crossup where p2 wont and vice versa.

Can anyone explain to me or link me to a thread that explains when Ken will and will not cross you up with a super jump when waking up after a shippu (assuming you are also playing Ken, as I’ve noticed this gets even more complicated with other shotos like Gouki will get crossed up when Ken won’t on some occasions)?

#2 in the post of the Sunday, May 15th, 2005