Just discovered this app. It looks like it's going to be a very useful tool for my team and students. It's always better to see what you're doing versus someone telling you about it. Can't beat the price, either!
It's pretty intuitive as there are videos to help and I was able to work through the first one in 30 minutes or so. I'll be using this a lot in the future.
Men's and Women's Head Tennis Coach, Friends University
Dunlop f2.0 Tour, Lux 4G, 4.5 all court, USRSA MRT