I have a "Superlative" STI Target master that was a piece of crap when I first got it. I have sent it back to STI Twice now and had a slide and bbl replaced to get it to shoot any as semblance of a group at 50 yards. Their customer service was great, but if their quality control any thing like the poor quality of the gun, shame on them. I was lucky to get a 6-7 inch bunch at the 50, now it will at least shoot 3-3 1/2 inch at the 50 with the right load.
Strange thing, has the tri set Aristocrat Sight on top and all screws are metric. When I called Jim At Aristocrat to get a screw and told him this, said none of his sights made with metric screws ever which led him to believe this was a foreign made clone. These guns supposed to be made in Texas, U.S.
I know you can get a lemon in anything. Now I know why the original owner sold it. Shame, thing is built like a tank and is/was tight.