Sorry if this has been answered, i tried searching and there's lots of LEM info but i didn't find much on this specific topic. I recently purchased a usp compact v7, which is the old dao model. Do I need the whole lem kit, or can I just replace the hammer, and maybe the sear complete. I just changed my hk45c tactical from v1 to lem, and it seems like the dao model might not need all the pieces. Anyone done this before, or have any info? Thanks a lot.