None on my trailer yet. I have them on the CJ swing out tire rack, holding the axe and shovel.
A set in the XJ for the mag light, and 2 smaller ones along the inside roof line for holding a fishing pole.
They have worked so well, that I'm going to put a set or 2 inside the trailer lid, for fishing poles, and some outside, for the axe and D handle shovel.
Even in the cold of last night (-24*F) the holders for my Mag light were flexible enough to unlatch it/latch it back in. A bit stiffer than usual, but flexible none the less:coffeedrink: