Quote Originally Posted by Simon Barden View Post
It’s the height difference between the ends, rather than the absolute height, that determines the angle of the shim. So it looks like you’ve got a shim that goes from approx. 1mm to 2mm, so a 1mm shim. You look as if a 1mm to 3mm shim would be best for you. So if necessary, glue two pieces of the wood together to allow you to make the bigger shim.

You could simply try fitting a flat 2mm thick shim under the wedged shim to raise the whole neck up a bit, (it looks like 2mm should do it) but you then end up with a 3mm block of wood at the neck pocket that you need to hide and blend in.
Cool, thanks Simon. I’ll cut up another veneer same shape as the current shim and glue them together. Will then test the neck for again. Thanks for all the help!! Will come back with some feedback in a few days