Hello, I wanted to hear your opinion about neck shim I used to fix high action on a tele. I've cut a piece of an old plastic membership card 1mm thick and maybe 1cm wide, and placed it against the back of a neck pocket and mounted the neck back. It's not really aligned with the corners, and it's not angled. I've read some posts on the internet that it's not a good idea to use plastic shim because it's too hard, especially not the one that doesn't cover the whole neck pocket. Allegedly it can disfigure the neck under the screw tension and make things worse. What's your experience with this? EDIT I said that the shim was 1mm thick, it's more like 0.4-0.5mm thick. Sorry for the confusion if any.