Let's talk about Apex Tactical trigger kits and Shield 9

Hey everyone.I recently bought the Duty/Carry Action Enhancement Trigger & Kit from apex for my Shield 9.I wanted to get the lightest possible pull without using a Glock return spring.Reading and researching online, I found that using the stock trigger return spring AND the stock sear spring will net me the lightest pull at roughly 4-4.5lbs?I know for sure the Apex return spring is heavier than the stock Shield. I was more interested in the difference between the stock sear spring and the Apex one.I was also wondering about the reliability of using a stock sear spring with the Apex sear.Any input would be appreciated! via /r/CCW http://ift.tt/2bwibua