Front hand under arm grip on boom

[abitwindy]

Yes like others I only use under hand grip occasionally when I had a 7m sail or if I’ve been sailing a while to change the muscles used.

Also i used to sometimes hold the uphaul with my front hand and leave back hand on the boom with my 7m and this really helped adding some power.

[toto]

I expect using a waist harness v seat harness makes a difference to what feels more natural, along with how long your harness lines are - shorter lines (relative to arm length) would mean your front hand is further forward nearer the mast where the curvature of the boom is greater hence making an under hand grip more natural?

[GraemeF]

Got caught earlier this year using underhand on my kitebar on starboard tack, to much abuse from the kitesnowflakerati, it's just what it is, more comfortable for some, that and it made pumping easier and more efficient back in the not hooked in days

[Duncan Adam]

Due to a broken wrist many years ago, for me its underhand grip on starboard but over hand grip on port.

[PhilN]

Due to a broken wrist many years ago, for me its underhand grip on starboard but over hand grip on port.

Ditto more or less. I think I damaged my left scaphoid and couldn't sail underhand on that tack as my thumb hurt too much, but was ok just sailing along with fingers on top of the boom. I never reverted back on that tack.