Quoted from hocuslocus:

installed a lot of em.
Make sure you put a small amount of wax on a new one and it'll play like it should.
I was a little skeptical at first, but once you get them installed correctly it works out great.
As you know it's subjective on how a game feels after the install, to me it feels the same, maybe slightly faster... hard to say though.

Quoted from dmacy:

I’d leave it out in the sun for a few hours and keep checking on it. You may need to add some weights to keep it flat.