I just put a rubber washer between my hammer and my breech piece. Worked fine, but the gun did not like my usual 195 bar fill any more. I had to turn up the power wheel a few notches to get it to open the valve properly when full. At first (on PW setting 4) I was seeing POI drop by 3″ at 25 yards when full.
Noise was not noticably different, but I was at the powder burner range and wearing ear pro. I’ll take ‘er out hunting tomorrow to see how she does.
Gun is a Talon SS with a frame extender and 24″ barrel in .22. It was a bit windy today, but I did manage a ~0.3″ one hole ragged group at 25 yards when the wind died briefly. I was pretty happy with that. Didn’t chrony today, so no numbers.