All of my tonneau dot fasteners are easy to use because they are accessible EXCEPT the ones behind the windscreen. My tonneau is pretty darn tight (it is the mohair version) and the possibility of scratching the inside of the windscreen certainly exists. Another local M3W owner wants to change his windscreen to the two small wind deflectors because of this issue.
I am not sure if it is possible to change the ones behind the screen without removing the body from the frame.
