Quoted from tracelifter:

What could go wrong?
No really I am!!!!!
I was doing a mylar removal on my day one mylar High Speed, this thing
was friggin' beautiful, I was going to take it to Expo this year! I
use the hot air gun and it comes up like a dream, colors are even
brighter than I hoped!! Unfortunately, it leaves the regular tough
glue on the playfield and I do the goo gone with the paper towel thing
and then move on to VM&P Naptha and finally on to goof off!
Nothing is working on this machine! I finally decide to heat up the
playfield a little to soften up the glue, hopefully.
I take the PROPANE torch, don't ask me why, I don't know.....(why
didn't I use the hot air gun, I did it wasn't working fast enough, but
it was working)
Well needless to say I got about 30 seconds of heating it up and
POOF!!!!! HOLY CRAP!!!! Black smoke rising, tripping over the dog, and
grabbing the bucket of soapy water that I used yesterday to wipe down
the cabinet and throwing it all over the playfield only caused the
flame to roll to the underside of the playfiled! Now I'm dousing it
out with a rag trying to blow out the remains of the flames and the
fuel slick accumulating in the bottom by the coin tray.
Aired the house out, friggin' freezing now! Stripped the playfield
bare in the hopes of doing an overlay or who knows anybody have a
playfield for sale? God I'm stupid! Lets just say at this point Jesus
wouldn't be playing my High Speed!
Did I mention I'm stupid?!?!?!? Mr. coil sleeves ain't got nothing on
me! I wonder if home-owners insc. will cover this? I hope I don't have
a dummy clause.
Excuse me I have to go to bed now and cry myself to sleep....
Eric A.
P.S. Did I mention I'm STUPID?!?!?!?!?

Quoted from girloveswaffles:

1. Explain how it's bad.
2. Obviously you've never used it to clean.
3. Apparently you didn't read the entire post.