When we had our 29' Avion 5er we used it all the time. Our current unit (see signature) came with a sidewinder pin box and we haven't needed it since. We can now turn the steering all the way to lock and do circles. What a hoot! Saved my life when I got into a cul-de-sac in Monterrey, CA and had to do a u-turn at the end of the street.