I consider myself to be a rookie when it comes to firearms. I know everyones knowledge of firearms is different. With that said, I would recommend only cleaning with what the manual says and nothing more. As for the trigger mod, I would leave that to your local gunsmith. Just remember, anything you may do during these two events which causes your firearm to malfunction could void your warranty. As your knowledge of firearms grow by several years, only then would I even consider going a little further. This is just my opinion, and I am sure there will be others offering their advice.