Since we're jawin' about 'race guns', 'speed shootin', 'short stroke kits', etc., I'm with Montana Slim on this one. T'was a time in SASS when the stock answer to equipment eligibility was: "If John Wayne would use it, it's OK." That went by the board a long time ago.
I took a hiatus from CAS when you still wore one gun and the .44/.45 was 'King'. I came back to find everyone wearing two guns and the .38/.32 'wimp' guns were the standard - with the 'IPSC Cowboys', that is.
Then came the 'short stroke' kits and John Wayne turned over in his grave along with all the other western heroes we idolize.
The guns I see gibble up most often in matches are the 'tuned' guns. I broke a mainspring in my '66 44-40 carbine and pal put in a new 'tuned' one. The hammer fall was so light, I couldn't stand it. I ordered a new spring and put it in. He did the same for a .36 Navy C&B for me and another pal and we both experienced failures to fire. Thanks, but no thanks.
A well meaning internet contact did me a favour by telling me what I needed to do to 'match prep' my Henry 44-40. I told him that I regarded what he was saying as an abomination and mutilation of a good rifle.