Yup Single Action Shooting Society. Used to shoot in RI and MA until my knees got so bad that it is hard to stand or walk. my 3rd (youngest) late son was/is Joe Cartwright. I keep both names active by paying the yearly dues.
Now I do postal matches with the Cast Bullet Association, I can sit at the firing line.
The nice thing about collecting used guns is that I can shoot all of them and do (except for 2 of my model 36 snubbies BPD that are NIB) the Woodsmans and the OMT are really spot on.
Ferengi rule of acquisition #59 "Free advice is seldom cheap"
website www.bpdguns.com
Postal matches are set for a come back in the age of COVID.
There is a training device called the Mantis-X which uses a motion sensor that talks to an app on your phone via Bluetooth. Some users have been using them to conduct “digital” or virtual postal matches. Might be worth a look