I wouldn't mind changing things ...especially for the better ....but sometimes I get "bit".

A few years back, a friend suggested a different body filler. I tried it and liked it, so I switched. About three months later, a customer told me a reddish stain had appeared. I recognized it was exactly where there was filler, and contacted the manufacturer and told them everything I had used. They told me that wasn't from their filler.

Later I was talking to the HOK tech line, and mentioned it. They said it happens whenever you use a lacquer product over it, and the company was well aware of it. There was no warning on the can. I eventually had to fix three jobs on my own nickle. ...then there was a clear that would blush weeks after completion! (That company lied to me too, when I asked questions!!!)

....and I have several more stories!

So when my paint system is reliable and long-lasting, I DO NOT CHANGE ANYTHING!!!