Quoted from bkaelin:
By the way, I have been experimenting with different methods to hold the playfield to the rotisserie. Is there a preferred method that will ensure a secure grip?
For the upper playfield, I remove a couple of the wood screws holding the wood edge and then put in longer wood screws through the rotisserie. If removing the wood edge, like in a playfield transfer or if you want to paint the wood, I just put screws through the existing holes. I always add washers to both sides.
The lower playfield is tougher. I have used clamps in the past, but one stinkin' time they came off. If you are careful about checking the clamps prior to each use, I guess you can go with clamps. I look for existing holes near the edge and use them. But with some pins, there are none. I know this is heresy, but I will now drill two or three small holes near the edge and screw the rotisserie to the playfield there. They are hidden, under the apron, no one will ever see them, and most pins have then there anyway. When I am done, if I feel like it, I coat the holes with poly and they look like they are factory.
BTW, my (and most) rotisseries support the playfield only at the ends. I like to put back on the left/right wood edges on the new playfield as soon as possible. They strengthen the playfield and keep it from sagging. As I add weight back onto the playfield, it can start to sag and I worry about damage or planking.
If doing a poly, be sure to let the poly cure for about a week prior to putting anything back on the playfield.