Is Lars Guck really around 200lbs?? There is hope even for me then.. But seriously, I have always tought a heavy crew would be disadvantaged against a lighter crew. A lighter crew will be fully powered up faster, create less hull-drag and sail with flatter sails which means less drag. A light crew will reach best VMG faster and be able to go into "pointing" mode earlier as the wind increases. Heavier crews will have some advantage in heavy winds, but until they have to let out on the traveller to depower I still think the lighter crews have the advantage.