Interesting idea. The tilt sensor for Gorilla is just a simple one-directional "mercury switch", designed to activate when a two-wheel bike is straightened up from a leaning side-stand position to vertical. I thought about mounting the sensor crosswise so it would activate if someone raised one end of the Spyder. Then I realized it could be in the "on" position if I parked on a steep hill. Scratch that idea. The trunk lid might work if you make sure it's oriented such that it takes a major change in orientation to activate it, that is, fully opening the trunk lid. Not just parking on a steep hill.
Related to that, I was parked at a motel this summer, a short distance from the street. A passing 18-wheeler that was decelerating or loud Harley (I can't remember which) went by and the shock sensor set off the alarm from the vibrations. Fortunately I was in the room and immediately turned it off. I have the sensor set at its least sensitive setting. The manual warns about false alarms from vibrations in parking garages but this was just sitting in the motel lot. Now I'm leery of using the shock sensor at all. However, with no shock sensor and no tilt sensor, the alarm isn't worth much -- the only way it would be set off is a significant voltage change (from starting). Anybody else had this problem?
