The problem with Mylar is that the glue used on it adheres to the paint BETTER than the paint to playfield timber in many cases. If the Pf has been in the sun on location ( shop widow etc) then it bakes on and tears up Pf artwork when you try to remove it.
If it hasnt been down that long, or machine has been looked after out of sun and damp etc then it comes up easily with care and leaves a nice unworn PF.

So is it good or bad?? Well its neither.. i always look upon it this way... how much wear would there be if the Mylar was not in place? yes it gets tatty after a while but chances are it gave another 5 - 10 years life out of the PF.
Dont get me wrong - I HATE THE STUFF!!! Mainly cos its my job top remove it - LOL!!!

If you are thinking of Mylaring a PF.. do yourself a favour and use contact instead.. it holds up really well and is removed a whole lot easier.. the glue on Mylar is far too heavy duty for our use.

I do believe though that i have found a way to remove it with ZERO to minimal paint loss and next time i do this tedious job, ill document it for everyone to see