Great sailboat mast shots get easier

The mast shot works brilliantly on a sailboat, even better than a windsurfer if you can get two people and the action in.
A Flymount and a great camera like GoPro, with a remote release, can get you those 'peak of the action' shots that look so great.
Koo Stark used to climb to the top of masts to shoot this sort of thing with her Nikons. It's a lot easier now!