Motors fall into the same category really. Shocks can dislodge or shatter magnets.

As for the ragebridge, I have ran one on two T64s at 6s on dual channel mode. Initially it had a 24v fan cooling it. The fan didn't last long. The ragebridge however lasted just grand. As long as you aren't doing anything too stupid with it, they are great controllers at the size and price point.