I have several of these rifles with 2lb triggers. To do what I wanted to see ala my IPSC 1911's I had to make fixtures to address the hammer hook angle and sear breakaway angle as well as the sear face itself. The parts are not very hard and their factory machined finish leaves something to be desired. In my opinion you'd be wise to spend the money to get it done right. Of course you can just bend the trigger spring to get your 3lb pull and live with the creep.......
Scott
