I ski LFF and when I started skiing the course about 10 years ago, I was told to switch to left palm down. Felt a bit wierd for the one set, but off side turns definitely improved. Most folks I ski with ski the same, but I've definitely seen it both ways. I usually tell people to try it out, give it a few passes, and see if it helps. If not, go back to what is comfortable.
1989 ProStar 190 with "Safe T Top", 351 Ford, GT 40 heads painted Ford Blue, Elec. Ign, 1:1, 720 hours, 4 blade prop, PP 6.5, removable platform brackets, custom color from factory, hot water shower, Boat Buddy & LED lights on trailer
2010 D3 Z7, 2 @ 32 off, 34 mph so far