Well, I guess only time will tell for sure.
I finished the restoration about a year ago and the playfield is just as smooth and clear now as the day I finished it. In some pics the flash from the camera makes it look a little odd but trust me, it looks just as good as any factory cleared playfield I've ever seen. I've only played just over 200 games on it since finishing. After clear coating I did a few drop tests where I dropped a pinball from 12 inches high. It didn't leave any marks at all.
I stored the machine in a garage for a few months during the summer where it hit about 100 degrees F and in the same garage during some winter months where it got down to 20 degrees F. No problems at all.
Now it's in my finished basement (where it belongs)
