A race is supposed to test a sailors ability on all points of sail. A reach just so happens to be one of those points of sail. The olympic course is the best in my mind, Triangle windward leeward finish downwind. This course is low maintenance for RC as the pin end of the line can be the leeward mark. Anyone that has sailed with a wing mark can attest, some pretty hairy stuff happens when you are stacked three or four deep, cruising at mach 6, and all have to gybe to round the mark...ROOOOOOMMMMM!!!!!! I vote wing mark!