I got the buttplate inletted a few days ago.

Yesterday I made a small .055" thick pad from a short section of a screw slot file. I soldered it to the bottom of the reciever so that the sear & the forward edge of the trigger rests on it. I had previously polished all of the bearing surfaces.  I now have a single stage trigger that breaks cleanly at a consistent 3#

Sear engagement is still ample. I tried slamming the bolt closed several times & also bumped the butt down smartly on a wood block to test for accidental striker release. No failures.

If you have an already "sporterized" Krag that is not a candidate for restoration this is an easy modification that can quickly be reversed if desired.