A lot of the sailors were impressed with the Scheurer platform and also the platform Ben used (Peter Cogan's and Ben's variation on the BIM) but clearly the sailor was more important than the equipment. Also realize no boat/mast/sail can be optimal for all conditions- they will tend to differ on wind, wave, etc. but a great sailor can minimize these shortcomings and maximize their advantages.
As to "professionals"- I agree most of the competitors were not full time professional "sailors" but I think anyone who makes their living from the sailing industry, and who stands to benefit (potentially) from their sailing is not an "amateur" like someone who has no financial interest (except to keep these other people employed!) in their sailing. Pete certainly has benefitted financially from the A2/A3's race wins in the past!

Kirt (Pure amateur at this point! SAILBOAT - def. A hole in the water into which you pour money and it never fills up) <img src="http://www.catsailor.com/forums/images/graemlins/shocked.gif" alt="" />