I had a mount from Bulletlines. It was OK. No quick release. Always had to loosen the clamp, swing the arm to put the tower down. I eventually ditched it. I swithed to a windshild mount, which is now my preferance. No messing with the mirror to lower the tower, and for me I can leave it on all summer. I found less mirror shake/vibrations. Tower is also lighter to swing up and down.