I have a 75 and a 97 both with SAO and CGW hammer, couldn't figure why the 97 trigger was crisp and the 75 trigger not so crisp. Not noticeable every pull , maybe 1 in 3.Polished the heck out of the 75 internals with no improvement. Did the sear cage fit with the extended pin on the 75 and it worked wonders.. Not difficult , took about 2 hrs , need to take down the pin top a bit at a time to get a snug fit. Thanks TOK for this great information!