I'd imagine the procedure is pretty much the same. I mean, they function the same way as current or more recent Autocockers. It's just more of a pain because you need to take off the grip frame to adjust the sear lug and depending on how old it is, you may not have a threaded timing rod. You could, however, have the sear lug adjustment hole drilled and get a threaded timing rod for them. I believe that PPS will do both if you send it in for a performance tune. The hole for the sear lug on the old hammers didn't go all the way through, but you could always get a newer stock hammer. Even the ones for nelson springs will work fine since the cocking rod is there to keep that little Sheridan spring pretty much on center.