Thanks for all the responses.
I'm a retired Tool & Die Maker / Machinist - CAD/CAM Operator - CNC Programmer / Operator and longtime personal gunsmith. I've built my wife's and my IDPA revolvers and pistols, my SASS CAS / WB revolvers, pistols, rifles, and shotguns as well as my long range varmint rifles.
So I have the skills and resources to get a much lower trigger pull on my M&P 40 PC Ported - if I elected to do so.
However, I don't think a M&P PC purchaser should have to do anything to their firearm. The M&P PC Ported video clearly claims "about a 4 1/2 pound trigger."
Additionally, and of a far more important concern - for me - I don't think it's prudent to have a personal defensive weapon that has been self-modified as far as to the functioning, especially anything to do with the trigger system.
I bought my 4 1/4" M&P 40 PC Ported to replace a Colt Stainless Lightweight Commander XS as my off the farm EDC.
In the astronomically small likelihood that I would ever use a gun in a defensive situation I don't want to have to tell the deceased's survivor's lawyers that I had modified the trigger.
In this particular instance - for me - it's not an matter of what I can do but what I choose NOT to do.
Thanks all
J.