Ummmh... shouldn't be like that. Even on the standard Garmin mount the Zumo fits fairly tight when the flap (catch) on top is pushed into place. This fiddly micro screw is just to make sure that the catch doesn't come up by accident and thus releasing the Zumo.
I haven't tried out the TT stuff, but the only difference should be that you have additional rubber pads left & right of the Zumo and this additional locking mechanism. The backplate is mounted on rubber blocks to reduce vibrations.
Up to now my Zumo didn't jump out of the standard Garmin cradle even on rough dirt roads.
__________________
Only when we pause to wonder
do we go beyond the limits of our little lives.
(Rod McKuen)
|