Here's the 130% Genoa Rolly Tasker built for us. We have a 100% Genoa that came with the boat, but felt that this would be too small for light airs (Jocara has a short mast).

Rolly Tasker offered a partial sponsorship, so we had his loft in Phuket, Thailand build one for us with their logo on it. It came out in a beautiful cream Dacron, is about 80 sq. m, and pulls like a train in 5-20 knots of wind without reefing. Here you can see it flying when we were unable to set the main, due to the broken boom that you can see lying on the doghouse in the foreground. The Genoa looks rather high-cut, which helps keep the water out of the sail when taking a deep roll. It also means that we have a hard time finding a good point, far enough back on the boat, to sheet it.