RE: GP YardStick Help (Research B4 U Buy)
Tom,
I don't know if they're on this site, but I've read threads where people have replaced the stock power system on their YS with a GWS EPS350C, C gear ratio and 10x8 prop. That turns it into what amounts to a carbon fiber and balsa Slow Stick, and gives the plane much better performance. Flights will be shorter, but at least it flies, right?