Most successful women on the WTA are tall, hit flat, have stiff 2-handed backhands, aren't great at slicing and have relatively poor lateral movement. A one-handed backhand could angle these women off the court on a clay court/high bouncing hard court, forcing them reach uncomfortably with their 2hbh's OR force them to make bend down and make weak replies to a biting slice on a grass/low bouncing hard court. There is a gap there waiting to be exploited. I just watched Suarez-Navarro destroy Svitolina with heavy topspin backhand angles - Svitolina was having to make so many extra steps out wide to hit her stiff and cramped-up 2hbh, leaving her forehand side wide open. Suarez-Navarro is literally the ONLY 1hbh player worth any sort of mention whatsoever on the WTA - and she's not even that good. Bring back Henin or Graf and they would absolutely feast on these 1-dimensional flat hitting baseliners. If only tennis coaches had the backbone to sacrifice a little short term junior success in order to coach this forgotten stroke.