My S&W Model 686 Plus had a trigger pull that was so high neither my Wheeler nor my Lyman trigger gauges could register a value. It was a great dry-fire hand conditioning exercise tool for both hands. After the TK Custom Kit was installed, it dropped down to 7.5-8.5 lbs and I didn't want to stop dry firing because it had been so stiff before I was really enjoying for the first time. I'm pretty excited about the outcome. Tomorrow, I'll take it to the range and test it on a variety of ammo to see if there will be any light strikes.