10isMaestro
Semi-Pro
Weird I always swing UP on the high balls to get top spin to bring them down into the court. With an extreme grip its possible. Sure there is a maximum height but assuming I have 8ft ceilings I top out at 7-8 1/2 ft.
FWIW one of my coaches said he took lessons as a junior with one of the "Panchos" where he was encouraged to hit high balls like Borg"s backhand with a two handed take back and 1 handed follow through. He demonstrated and it was really effective.
If you watch even high level players, although all of them are not as destructive on higher balls, one handed backhand players tend to struggle more than two handed backhand players. However, you are right about one thing: using a more extreme grip makes it easier to bring those high balls back into the court.