It sounds crap when it's badly written down like this.
How are you at these:
Having said that static rockovers seem to be ok.In fact this whole thing was brought into focus by a problem at my wall.both hands on slopers, very high left & trailing right foot next hold a long way up & right. Everyone else goes dynamically up & rightwards.
[So you've got a high left foot but going up dynamically rightwards? Doesn't soung like a rockover to me.
Perhaps I'm unusual but my bum is located below my waist, at least when I'm the usual way up.
Even if it doesn't help this exceptionally specific problem, then improving your leg strength via pistols can't be a bad thing though (unless you already do them)?