All-Star Legs In Backwalkover

[jascheers]

I have my Back Walkover, highly consistent with straight legs, but in the ideal walkover, legs should be in a perfect split. I have my oversplits, but in the walkover, my legs are at around a 60° angle. Any tips on getting my legs in that split? I attached images of what I am talking about, and my legs in the walkover.