I had my gunsmith put in one of these. Supposed to take my trigger pull down to 3.5 lbs. I wanted 3 but 3.5 is good. It went down from 7 to 6 lbs. So I got another one from Midway that is 2.5, a little lower than I wanted to go but figured it might give me my 3 lbs. It don't. Only picked up another pound. Now it's at 5 + pounds. What up with that? I think I saw one for 1 pound, do you think that would give me 3 or do I need a zero pound pull to give me 3? See my logic there?