ok i was able to find the page that i was talking about. todd hodge actualy put this together for rc-car in april of 03 for trucks but i think it would carry over to the buggys. the dogbones have less friction since its a plastic yoke and a steel pin, so they give less rear traction but tend to give more steering. the cvds give more rear traction due to the friction of steel on steel of the axle and coupler.