Hey bjhjames,
We take a bit of a different approach. The easiest way to improve is to watch video of what your doing and have someone coach you.
Tiger Woods has a coach, Michael Jordon etc etc. It amazes me that many in the surf industry stay with the old school ways.
We use radio helmets to talk to the girls as they surf on the wave. This allows us to tell them to get that foot further back or further over on the rail etc.
Lots of options it you have the balls to go after it.
Phill

