I cant think of a 15 foot, mini cruiser (with cabin) that is comfortable for more than one or two. I know a few have been sailed with three or four. It can be done. With that many in the cockpit there would be no need to switch sides on a tack... just do a hand off. As far as ballance... and capacity. I don't think you could find a better boat to use if you (had to) do the occasional more than 2 persons. However, I believe I'd try it in a nice warm lake before attempting our SF Bay. If anyone became uncomfortable... Well? My .02 Bill (SF)