If the light rails fall off or partially off, then it can block a ramp return or launcher. On the sets I make, one roll of magnet tape was not nearly as strong as my other rolls, and that caused some issues on those kits I made for a few of my games.

Oh yeah, for sure on that one roll I bought locally at Home Depot versus the ones off Amazon. I own one set of official Pinstadium lights and have moved it around to 5 different games, so adhesive on the back of the rails is not that strong anymore. They have been fine, but moving them around to different games could eventually cause them to fall.

I played Deadpool Pro and Premium at the York show today and had a blast on them! First game ever played and I scored 200mil (on the pro). I couldn't hear much at all, but this game has so much flow and combo flow - totally my style of game play on initial impressions.