I use the same grip for both. A western forehand and then whatever that turned over is for the backhand. I assume it's an extreme eastern grip but don't know for sure. I played on red clay for years and never had a problem. On hard courts the only issue that pops up from time to time is on low forehands. For some reason I have no issue with low topspin backhands.
(4) Volkl PB 10 Mids
Babolat Tonic+ 16/Babolat RPM Team 17 @ 51 lbs