The only informative statement made on the subject was that the stainless
steel lines "confused the wheel speed sensors".  My thoughts are that it's
because they already are a ground wire, and it should have become general
knowledge if that worked by this time. Having worked on the development of
high pressure Teflon hoses for paint transfer those that were for brake
lines were not an option. That material has little memory, hence the
required braid to support it. Now if you look at the crimp it is severe to
get a hold of the slippery stuff. In other words it is compressed to the
point of yield when it is new. All of the paint hoses were supported at the
crimp with outside spring coils to restrict movement of the inter Teflon
liner so it wouldn't fail from movement and contaminate the paint.
Replacement was frequent and most went to stainless pipe to eliminate hoses
where possible, the hydraulic shock from normal use would break the Teflon
liner. That type of shock is not present in the braking system but the
flexing is there. They work but they wouldn't be on my car, the nano second
they might save is not worth it.

Nether do I, it's in a CD that shows it very well, you should have one.