Quoted from Bradp56:I am still having the issue with the ball falling off the castle lock ramp. I am going to continue to adjust it to get it right. Its better but still not perfect. Also sometimes the coffin lock ramp the ball will rattle at the top of the ramp and come back down. I am still adjusting that.
I bent a small amount of metal wire (kind of like the wire you'd use to make your own gate) and attached on end under the switch mounting screw near that bend and the other end nearby so it basically made a little barrier to keep the ball on the wireform. When I have a chance and I'm at home I will try and take a photo of it. You don't even notice it on the game and ever since I did that I have never had a single ball fall off again.