I saw on on another thread that you are planning on changing brakes to StopTech. Do you mind if I ask what model brakes you are getting? ST40? and nWhere you got them?
Also if you don't mind, would you share details of your camera set up? I also have the Tackform headrest mount that I used with my iPhone but got really bad shake. Not sure if it was the camera quality or the buffeting from the rear two windows open on track. Do you use image stabilization on your GoPro?
If you prefer you can answer on PM or not at all!

Just thought I would ask. Thanks!