[QUOTE=996_C4S;9843788FYI, suction cup works well just about anywhere ... I've had it all over my car (glass, body, etc.) at up to 125 mph with no issues. [/QUOTE]

What is the trick to keep the suction cup secured? I had mine stuck the back glass of my hardtop and between sessions last week it fell off! Gladly it didn't happen on the track but I could have sworn that thing was on there securely. Do you wet it?

 

I can see how that'd be unsettling :-). Trick is to a) push down hard on the suction cup; b) press the black piston down toward the suction cup; then c) pull the lever all the way up. It won't budge.

 

Ya play around with it at home and you will know when you get it right. It is extremely tough to remove until you release the lever.