Ruger Nut
US Veteran
I agree with you 100% about not messing with the sear.I put the Apex spring kit in my SD40 and then tested it with about 200 rounds of hollowpoints.
At the end of the trial the trigger was definitely lighter and smoother than it had ever been.........in fact.....it seemed like an ideal carry trigger.
Striker spring, trigger return spring and striker block spring were all I replaced.
Left the original trigger on and did not mess with the sear.