I built my 720 at the end of the season. I had the parts, and was going to install the blade swaybar. I was having a good time with the larger one on my 960, but I read many aritcles and looked at many pictures.. Nobody was using it on 1/10th scale. So right now, my blade swaybar stays in the bags. It just appears to be very stiff, especially for parking lot tracks.