Brampton Mike
....if the are installed properly you wont' have a problem...
........how can you install it wrong? It' s not like a car stereo or computer. My sight didn' t fail because of the way I installed it, it failed because it' s made of plastic. The complains I' ve heard about TruGlo (in the sport shop and on the computer) is about the screws tightening down on to the plastic and how they can work loose or the plastic breaking.
After contacting TruGlo last year I was told there' s nothing they can do and that I should be careful when walking through the woods because of their sights construction. I' m sorry but I' m hunting! I can' t be worried every time I go in the woods weather or not my sight will be there come time to use it.