I am aware of that court action... I am also aware, from personal
experience, that litigation and court rulings have absolutely nothing
to do with fact and everything to do with arcane legal maneuvers and
motions, bald faced perjury, etc... The best dog and pony show gets
the blue ribbon...

I do not know if AVBLEND actually works or not... I do know that the
Part 135 operator/FBO/owner used it on my his Apache for decades and
that after I purchased the airplane from his estate I did not use
AVBLEND as I was not convinced it was effective... Suddenly I have a
stuck valve, my first in 40 years of owning airplanes... I am now
using AVBLEND... Check with me in 5 years...

BTW, my current mechanic swears by MMO and uses it in his rental
fleet... fwiw

denny