Agree....to a point. While you are factually correct that we live in a Era where the oils you listed are very good and can be had at a great price point, and are plentiful, the op chose another option. A boutique, non shelf available one at that, and exclusiveness, if you will, costs.
M1 is a great oil. A great option that would have worked great in ops car. I'd dare to say that HPL uses a superior base stock, no nonsense answers on this forum, and a pretty much open door policy(they had a bitog open house) coupled with nothing but stellar reviews and usage by respected members on this forum(some are engineers, tribologists).......I don't question the ops choice to go with it. Just don't like the "I bought a jersey, now I'm part of the team" attitude by some members.
I believe that member reviews(as I said, engineers, tribologists....they do lack a sense of humor) open door, superior base stocks, trump anything on the shelf.
All that coupled with Made in USA, employs Muricans is worth the price of admission.
Hpl going in the s4 and mini s after the winter. Cause sometimes PRINCIPLE > PRICE