Anecdotally, I believe Boss made the best of the early single triggers in Britain. I was asking a guy about his Purdey pigeon gun with ST. He said it was a Boss trigger, and I’ve heard from others about Purdeys with Boss triggers. A good friend has a between the wars Purdey pigeon gun with a single Purdey trigger. Maybe by the late-20s Purdey had the bugs ironed out I dunno. I avoid British ST guns, but I have no direct experience. I’ve been prejudiced by hearsay.
I had an LC Smith pigeon gun with a HOT, no problem. Also had a Parker DHE with early Parker ST. No problems there either. I was told to leave the selector switch alone but of course I didn’t. Still no problem.
