I've got a group of advanced rec/prep op girls who are working these and before they even try it on the high bar they have to show me 2 things:
-Jump to swinging pullover (low bar to high bar) with good form and wrist shift and without scaring me, both from an immediate jump and with an extra tap swing
and
-Cast at least to horizontal, push back, hand shift, hollow drop to a resi on the low bar. Consistently. Again, not scaring me is a prerequisite.
(these girls aren't aiming for the level 6 baby giant at this point, but nonetheless, peeling off really isn't the goal for rec OR prep-op OR L6, so the cast and hollow drop is kind of important to me).