Considering the last time I used Gorilla Glue it expanded and hardened like a dam diamond, I don't know if I would want to use it on the rails if you want it back off EVER! Plus if it expands it won't sit down like it should and you'd have to sit with it holding pressure all over until it cured... 2-4 hrs later. I would think the trying to take them off later would result in pulling off the paint under the glue before the glue itself let go.