2 Part Technique - When applying Over Under Control, peel away any grips that get in your way, and if he plays his knee across your hip, address it by shoving it out of the way with both hands before coming back down for the Over Under Pass vs Half Guard. If he resists this shove, switch directions and fold his knee back down, landing on top of his leg with your hip for the Folding Pass vs Knee Inside from Half Guard. If he does nothing here, simply pull out your leg as you pass around to side control; if he closes his half guard, simply assume your original intention in passing his half with the Over Under.