If you look at your BOP playfield you will see that the wood between the cutout for the ball trough and the slot for the shooter lane switch is only about 1/2" wide and can split there. My old playfield was. Here's what I did to prevent it from happening to the new playfield. Also I've had 2 BOP's and both of the skill shot wire form ramps had one of the threaded mounts broken off. I took a piece of threaded female metal tubing and attached it to what was left if the threaded stud. I milled out the slot in the shooter lane to allow the tubing to fit through the playfield. The tubing stuck through the playfield about 5/16 of and inch and I used a nut as a spacer around the tube before installing the machine screw in the tube. Stacked washers or a piece of metal tubing as a collar will work too.