While returning form Longview, Washington Friday on I 5 at 65+ mph in the middle lane with plenty of 18 wheelers around me I had difficulty seeing my GPS for the glare. I reached up with my gloved hand to tilt the ZOMO 665 and away it went, never to be seen again. I just threw away $800 dollars. I have become very dependent on the GPS and I am now going through with drawls. I see (Video) that Touratech has a splendid package of ZUMO 660 and locking mount for less than the 665 cost me. Perhaps I'd be less likely to blunder and loose the GPS if it is locked. Does anyone have experience with this GPS locking system? Will it mount in the area of the existing GPS mount?