Is the membrane wave sail better than a standard wave sail?
They are different! Reportedly the conventional laminates have no longer life and less solar resistance, which means that the membrane sail doesn’t like the sun at all, especially the glue between the films suffers. A quick de-rigging after each session definitely is recommended.
Also the feeling of a membrane sail is not for everyone’s taste. It doesn’t feel much lighter while planing and creates a lot of drag because of the very deep powerful profile in the front panel. Therefore you can take one size smaller most of the time. Nevertheless, in theory membrane sails are actually softer than classic sails and become more elastic after repeated use.
As already mentioned the pressure point moves backwards in gusty conditions and can make the handling more difficult. Besides that the twist of the sail is less.
A sail of this type wants stable wind conditions, which we definitely had in Bolonia. We think the 140-180 Mega Slim boom on the already very light sail body is a bit too thin and we prefer to use the standard Platinum boom in 140+ with 150 gram more weight. We really liked the Mega Slim on the Super Hero and Idol. For very tall riders, the mast sleeve opening could be a few inches higher.