Oilman-
Used to talk at length with a fellow who was trying to get Militec out on the market and did a lot of local shows.
He could never persuade me that putting his $25 or so worth of stuff in AMSOIL would be economically beneficial. He became an AMSOIL dealer so he could buy Series 2000 0W-30 at better price--and of course put Militec in there too. Can't give any long term reports, as I haven't seen him for a couple of years now.
I do have a dealer who uses Militec with the AMSOIL Series 2000 20W-50 in a classic racecar.
Says it is worth about 100 rpm at the end of the straightaway. In that case, probably worth it.