Very first pin I bought, it was a JD I purchased on Ebay from BarryWNJ. It finally arrived and I was so excited. I literally wouldn't have even known how to take the glass off at this point. The game arrived with a cardboard shroud over the head. It was folded down on the cabinet. I lifted the head and when I did a wad of 6 pinballs crashed through my playfield glass.

Someone had put the balls on top of the head, slid cardboard sleeve on then folded head down. Might not have been terrible, but the glass was thin plate and it broke into dangerous large shards. It was also a rude introduction to pinball for my girlfriend (and me to a degree), since my first week playing was with no glass, lol. Anyway, there was tons of shit wrong with that pin, but I learned alot about repair and who not to buy from on Ebay.

My GB Pro must be slightly off being square (not a level issue) the glass literally takes me both hands like Spiderman applying tons of down force to be able to remove the glass. Once I get it slid down a bit its okay, but literally it's so tight it's scary. I was an auto glass installer for years so I'm familiar with the strength of tempered and it still had me uneasy at first.

That's an amazing demonstration.