If you tested the cross up working only on those characters, then my question would imply just those
PPP
Ok here is what i found out?
It loses hard to Kryptonian Crush xD
Also, If you Dash you lose your meaty C.throw. So basically i guess use it later when you have trained you opponent ?
Just a guess or dont use it against mashers lol
But if you don't dash and do a raw c.throw you get it meaty ^^
Also just tested without a dash and a raw throw it will catch someone jumping
His meaty loses to Deathstrokes's Sword Flip and Sword spin sadly.
I'll test the rest of the cast later today