I finally got to shoot mine last week. On the first shot, the empty stovepiped and after clearing it, the rest ran like a champ.
The trigger is so heavy, at least to me, I think I was pushing the gun as I pulled the trigger and most of my shots went left and low. Got to work on that.
I cleaned it this mornng, and was surprised at how clean it stayed internally as compared to my M 41 and my 1911 type centerfires, almost spotless. I did examine the firing mechanism a bit closer and ended up putting a mix of moly paste and synthetic lube on the sear area of the hammer and that seemed to lighten and smooth it just a little. I am hoping it will improve with use.
I am used to much lighter triggers like my M 41, the K frame target guns and even a little Kit gun along with my 1911 types, I also shoot some air guns with trigger pulls down around 3 oz.

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Jeff