Did another match race between a Serenity and 2 sailboats lately :
Wind : 4-6 knots. Fresh water lake, no chop, swell at 5-8 cm.
Board : Serenity wood mk 1. Drake XXL 70 cm stock fin. Mast track set right in the middle.
Sail : Severne Reflex II 11.0 m2. Mast Severne Enigma 550 cm. Boom Severne Enigma 210-260 cm carbon. Luff set at 561 cm, boom set at 252 cm. Sail is trimmed very deep, draft kept forward with a tight leech, monofilm barely touching the boom's arms up to the harness lines.
GPS readings showed that I was able to point upwind at a 45° angle. Speed upwind was around 6-7 knots.
So, first match racing with the same upwind angle as a Toucan sailboat (and the helmsman was very good), I managed to catch up from behind and pass the sailboat after a 10 min upwind battle because I had a bit better speed upwind than her. I can point a bit higher than the Toucan but then my speed decreased quite a bit at 5-6 knots, similar to that of the Toucan. So I knew my setup was competitive.
Second match racing against a Psaros 33. That racing sailboat is a brand new prototype (April 2012), with canting keel and self-aligning daggerboard, high-modulus carbon mast, a full battened square top kevlar main sail, a light-air designed code 0 jib, total sail area of 87 m2 for just 1950 kg total weight (see specs : http://www.sebschmidt.ch/portfolio/0...33_english.pdf
). Crew of 5. I sailed upwind and behind her, aligned myself with the same angle upwind and tried to follow. No chance. First, she points 10° higher upwind than me. Second, she was faster, maybe 9-10 knots whereas I was speeding at 7-8 knots at that time. After 20 seconds of match racing, I was done: just impossible to follow.
So, my point of view is that sailing the Serenity + 11 m2 sail in very light wind (2 Bft) can be highly challenging and rewarding against top-class racing sailboats. Costs are 50x less expensive than a Psaros 33 and all the kit can fit on a car/minivan/van's roof top...