For what it's worth, I do not shim my triggers. I personally never felt the need. However,
Let me throw this out there. i have locked up the trigger on occasion at a match. Maybe
that's a good thing ??? Since I put side pressure on the trigger to make that happen, it
may have saved me from throwing a shot with that side pressure. Just food for thought !!

Weighing trigger pulls ?? I'm so old school on that one.....Tomato paste can with a hook.
Spoon in heavy sand until the trigger breaks. I can weigh a trigger within' .02 grains.