Wrist flexion can have two meanings: it can be a verb meaning the action of flexing the wrist i.e. wrist snap. Or it can mean having the wrist cupped. Are you talking about snapping or cupping? As of yesterday my understanding of this mechanical action has changed, I used to think that the drop would be faster, now I don't think so.Say you put a screw into the ball. The screw would be pointing directly back at you with bullet spin. It would move 90 degrees to the side when throwing a drop ball. More wrist flexion through release would be needed to go from bullet to drop assuming equal ir palm up with both pitches. More wrist flexion equals higher velocity - drop ball should be faster? She's having hard time getting more wrist flexion to throw a drop ball when I'm telling her to always stay loose and whippy. Maybe not getting there bc she's not staying loose and whippy?