Auxilary:
Too bad his sucks.
I will admit that the one my brother-in-law got initially had a TERRIBLE DA pull, but after a littlle 'Smithing", it's smooth as glass now.
Neither of us has had any jams or FTF.
Of course while I was doing the wsork on his action, I also polished the fed ramp, did a little recontouring and chamfered the chamber. Then I did both of mine. This was before we ever shot them.