I rigged a Brig boat the other day for southampton College, cant remember what size it was though!!, I put a 135 Opti on it. Have to say it was quite a nice boat, did find it a bid hard work in choppy water though as its not a very deep v hull. Its flatish front nose tended to dig into the waves a bit a push the boat around. Also found the Seats were far to close to the Console and made it very uncomfortable to sit down for more than two minutes and when i stood up the seats really cut into the back of your legs. There more like bar stools than Rib seats, but hey. I think the boat must have been about 5.8- 6m ish. It was easy to rig though as the console is hinged allowing lots of access underneath it. Also looks pretty good too.