M_Boats: Tongue Weight?

SF Bay is calling me... I've got the No Sailboat Blues! Can someone tell me an average trailer tongue weight on the late model M-15's? I towed the P-15 with a '02 Honda Civic. I guess the M-5 will be 400 pounds more. I'm not concerned to much with the stopping ability or cost of the inevitable, new transmission. But the question I'd like to pose... Is anyone else doing this? Or another little car? Thanks,