I've been on the 5.8m2 '02 Sailworks REVO the last 2 days. One day started out light and then went blistering sideoff with other guys on 4.7m2's and 5.0m2's and yesterday was light side-on weather. The sail performed beautifully at both ends of the range. Particularly beating back to weather which is normally an issue in sideon conditions. The Simmer 5.7m2 Onshore Wave pulls like a tractor on the low end but, gives up some high end. Sailor weight and board volume makes a big difference in onshore conditions...volume is your friend. This is a page that Will V has up for heavyweight sailors:
http://www.ispros.com/windsurf/willvwindsurf.html I have him set up on a custom wave board and a 7.0m2 Aerotech Lite Charge wave sail for sailing in these very light onshore conditions.
WARDOG