Jeez I'm seeing stuff I've never seen before. Thanks for the explaination on how you removed the glue. Can't believe the time it has taken. Good to see you have some patience, especially after the bad luck with the mylar removal.  Interested in the progress of your restore. As far as your next move, I reckon heat may be the go as I don't know of anyone doing freeze on non clear coat playfield except for me trying for the first time.

Although it seems it'll take me as along a time to remove the glue via the freeze method, I've got so much freeze spray left, I thought I'd try it initially and if its successful do the whole job. If not, I'll definitely do the heat method.