I was told (or rather shown) by someone that the backhand slice follow-through should arch upward a bit after contact, in stark contrast to the drop shot which has the racquet chipping downward toward the feet (which I've seen Federer do a million times, especially in the match he lost in the 2018 US Open... given his success in that match with the drop shot, this may not be the best example, LOL). Players tell me I have a nasty backhand slice (lots of pace, low-bouncing and just "skips" off the ground). My natural follow-through is more downward oriented. When you put topspin on a ball, your racquet's follow-through is high, sometimes super high (for a reverse forehand), or sometimes even "level" for a flatter shot. Wouldn't it stand to reason that the opposite spin on the ball (backspin) would also have an opposite follow-through (low, or at least no higher than "level")? To have the racquet finish a slice higher than the point of contact just seems counter-intuitive to me. Also just curious: Is this element of technique is universally accepted, or is there any controversy among good instructors about how the backhand slice should finish? Are there examples of this with pros? Should a forehand slice (not a defensive one but a neutral/offensive one) have a similar upward follow-through?