Hi there
Wouldn't bend my elbow as the straight arm helps with the push plus protects your wrist and forearm….im sitting with a chronic forearm from doing incorrect hand springs ie: bent elbow.
Instead rather drop your bottom hand lower to the ground, top arm cup grip, when going into iron X pull with your top arm as if trying to pull your chest to the ceiling twisting hips upward just slightly.
I could never do a iron X until a few weeks ago where i studied 1 of Evgeny Greshilov's video's and saw what he does, now i'm holding it, not 100% horizontal yet but holding and to the untrained i looks like a pro…..hahahaha…still building up the strength to get my lines right.
Hope this helps