Simbo
I've have had the J&B adjuster on my Browning for the last couple of years. With about 8,000 rds with the J&B adjuster. It works fine and has so far held the beginning adjustment. My trigger is down to a little less then 2lb. I was going to use the Dale53 approach but decided not to because if any adjustment is need to the screw the stock must be removed and that's a pain in the a##. Good luck with you new shooter.
Don