That's true, I only do the hammer and sear contact surfaces with a ceramic lansky knife sharpening stone which is extremely fine, didn't take more than a minute or so for each surface. I also polished the pins and bores with oiled 600 wet/dry paper. Mine are at 2lb3oz to 2lb6oz. which is a great hunting weight for me, I like lighter for bench work, but they are crisp enough that they work fine for both. In reality, it took more time to make the slave pin than it does to do a complete trigger job!