Just thought I'd drop you a line and update you on the demo fins. So far we've had about 10-15 club members use the hahaluas. One member took them out for one run and liked them so much he bought the remaining Tuttle stock! In Terms of speed..I've had my hahaluas up to 30knots and they still feel solid... I think I'd pull out before they will! Main comments have been the locked in feel and smooth transition to planing.