I have a no-name strat body that I put an old MIM strat neck on and then did a bunch of mods so that now it looks pretty nice and sounds great!

Here's the hangup:

i shimmed the neck with two dimes (side by side, not on top of each other) and I still can't get the action low enough to be really comfortable without buzzing.

yes, the neck is straight. i adjusted the truss rod and checked for straightness.

how high can you shim?