It is always said that a loop takeback is better than a straight takeback due to creation of momentum and racquet head speed, also the power. But if i'm not totally blind, after turning the hip and torso, most of the looped forehands take a break and the racquet goes back again before it goes for the ball. Not sure if i can explain it but look at that video of rafa hitting;
After the racquet drops, he moves his torso and first the racquets stops the motion, then it goes back with the lag that body turn creates, and lastly go forward to hit the ball. That means all the momentum that created with a loop takeback is destroyed just before hitting the ball and a loop takeback has no difference compared to a straight one in the words of power and racquet head speed. Can somebody explain me that situation ??