I had read up on the different techniques for mylar removal, easy to read, but nerve racking to attack you own pin. There were a few edges that were lifting so it seemed best to start at these. I used heat and went fairly slowly. The heat came from an electric paint stripper that has temperature controll. I set it to the lowest setting - don't know what temp this is, but you can put your hands in the way without burning so I figured this was low enough. I also thought if my hand was getting too hot then probably so was the play field. This went well to begin with and was easy to control. Where it started to get hard was where the mylar was in poor condition as you get little tears in the mylar compared to just rolling it of in one big sheet.