I'm actually with boramiNYC on this. When you're planting from heel for an open-stance FH, you're using the posterior chain (waist down.) This puts your hip flexors in a much safer position from the open stance, and it lets you more efficiently load power into an open-stanced FH. Also, if you learn to move using the anterior chain, you'll end up moving in soft arcs across the court, with improved lateral movement and balance.
For the 1H and 2H BH, it should still come from the balls of the foot.
Directory of Tennis Warehouse Clubs (courtesy of Mountain Ghost)
Last edited by tricky; 10-02-2012 at 09:16 AM.
Reason: changed from anterior to posterior