I have a pair of ROAs thagt have had such treatment.
The RNVs have Super Black Hawk hammers with half cock notches and the transfer bar removed.
I've done most everything to them that can be done.
The problem is if I have a stage calling for 10 shots in a row, by shot #8 my thumb is complaining and by #10 it doesn't want to work.
I'll shoot Frontier Cartridge with the smaller and lighter RNVs. I could, of course, shoot my '51s, '61s, and '60s squaw grip instead of duelist but they get angry at that and don't want to work.