Had to be the first .45 I ever owned. It was used and just had Falcon written on it. Never seen another one since. Feed was OK, functioned OK, but the darned thing ejected the cases straight back into my face. Lucky I'm religious about wearing safety type glasses. I had a string of bleeding circles across my forehead. I got rid of it after a couple of months. Now that I look it up, it may (I repeat MAY) have been a Peregrin prototype. So, some collector probably got lucky. All I know is that my next .45 was a Parkerized Colt 1911 that digested pretty much everything I fed it, and didn't leave my face bloodied.
The single action design is intended to roll in your hand. It helps with recoil and follow up shots.
You want pos, lets talk about the FIE Arminius
"Patriotism is supporting your country all the time, and your government when it deserves it." -Mark Twain
That's why I said "May". This was a bit after I first started with hand guns, so it was probably about 1989. The store where I bought it went out of business a long time ago. I Googled Falcon and came up with the Bren Ten stories. They did say that Peregrine had made a couple of prototypes including a .45 in the Falcon line along with their copy of the Bren Ten, so I guessed. You may very well be right, although I did get on the STI site and saw a double-stack "Eagle" but not a single stack "Falcon." An article I found that talks about the STI Falcon describes it as a snub nose .45 resembling the Colt Officer's version but lighter. I remember this thing as being the same size as a friend's 1911 A1 when we lay them side by side at the range. Anyway, I'm not making any hard and fast claims - I didn't know diddly about 1911s and such in those days. All I know is that I had a gunsmith fiddle with the ejector on the thing and it still sent the cases straight back at my head. Not a pleasant experience at all.
The worst revolver was my first gun ever, a Taurus Model 83, in nickel. Crunchy action, the face of the cylinder wasn't flat, so when it got hot and had some residue on the front of it, it wouldn't turn. The timing was a mile off, and the rifling on the barrel was non existant in the middle, and very shallow up near the forcing cone. At the muzzle end, it was very deep and rough, better to catch the lead with. 2 trips to FL got some of the issues resolved, but they refused to change the barrel, so I sold it to some dope who knew the problems it had, but bought it anyway. I bought a Dan Wesson Model 15 and loved it.
In autos, there's a 3 way tie for the worst. My first 1911 was an AMT Hardballer. There wasn't one thing right on it, and it jammed constantly. I sent it back to AMT and it was only slightly better. I sold it and then bought a Colt Commander, thinking, "It costs almost 3 times what the AMT did, it should be great!" I thought wrong, it was nearly as jam prone as the AMT was, and after having Colt and a local gunsmith work on it, it wasn't any better. Colt scratched it all up too! I haven't owned a 1911 since. My $350 EAA Witness makes them look sick, it never jams, and feels a lot better in my hand than any 1911 ever did. It also holds 3 more rounds.