Thanks 30Three. That's pretty much the same as I'm talking about. The metal jig I linked is a perfect tool for such a project. It employs an Arkansas stone on a surface that's clamped securely against the vertical 'wall'. It allows very fine adjustment of angles. Only problem is that it's a bit pricey: about $170US or more, delivered to my house. I like that you thought to make your own from wood. You probably saved a lot of money that way.

Getting back on Hypothetical Street, as I was saying earlier Plan A would be to simply keep the same angle and see what stoning and polishing the C-piece would do. If no real improvement then maybe measure my #1's C-piece angle. Possibly try to match that.

And of course, test test test before introducing live ammo at a range. After installing my Huber trigger and getting it adjusted to my satisfaction, I cocked the rifle (empty of course) and gave it some drop tests onto a folded piece of rawhide I placed on my garage floor, from about a foot high. Then I smacked it a few times from the right and left side to ensure that nothing bad would happen. Then I dry fired it, re-cocked, and repeated the tests.

I might even make up a dummy round from a 'retired' brass case in the bin and make sure everything's still okay with a round in the chamber.

Not to get too off-topic, but man, if you guys want to see an UNSAFE trigger, you could check out my dad's old Winchester Model 54. He gave it to me a few years ago. His dad bought it for hunting in TX ca. 1930. It's a beautiful hunting .30-'06, but someone messed with the sear and sear stop somewhere along the way. These M54s, the predecessor to the M70 by the way, were known for heavy triggers. But for various reasons, mine breaks at just 2#. And it sometimes goes off when just lifting the bolt handle slightly! It's a mess. I need to find a professional who knows about these old rifles.