sailor weight

I Weigh 75 Kg and i dont know if i pick the standard or radial. Can anyone help me?

I'm about 260 lbs. and on light wind days I have to sit on the middle aft deck (at the middle back of the cockpit) to balance. Has anyone just shortened (sawed off) part of a wooden tiller to use on non-racing fun days so it's easy to sit in the middle and steer ? Otherwise it's impossible to...