I have done 5 trigger jobs on my Encores, I have screwed up one and it cost to get the sear replace and job done. I'd recommend farming it out. I wish I could find the information to whom I sent it to, but I cannot. I have some that will pull just over the 1 Lb mark but would not recommend it. As suggested replace spring without doing any polishing but if you feel luck go for it.
Also if you have never taken down the action of an Encore, putting the spring back in is the challenge. The first one I did, I swear it took over an hour to put it back in. Recommend tying something to spring so if it does pop out you can find it or order 10 of them just in case.