I am with McIll on this one. Coming over the service returns with the one handed backhand is tough. All the singles I used to play I could just block/slice the ball back when I faced big servers. I was pretty good at blocking it down the line or at the feet of serve and volley players. But now in dubs that shot is much tougher, I need to get it on the rise and cut down the net man's time to poach. I am getting better at that. But topspining the shot is soooo tough still. If it is a flat serve or a slice serve I can topspin it. If it kicks, hell no, need to slice.
The backhand overhead, always a toughie.