I have a second cousin that had a Hunter one-trigger that had been giving him trouble in a 12-gauge Crown Grade L.C. Smith, then the stock broke. He had the Smith restocked and converted to double trigger at the same time. It was a done by a gunsmith in Minnesota. This was all a bit over 30 years ago. I doubt it was cost effective, but he's probably gotten well by now and had a lot of years use out of that Smith.