Machinist and metallurgists everywhere are wanting to know how one can use only their eyesight to determine that one grade of steel is better than another.
Nice trick if you can manage it
What they do have is a slightly matt 'industrial' finish, designed for compatibility with aerospace fittings, which, based only on those in a friend's 'shop (in daily use on classic cars), appears to be extremely hard wearing. On the minus side, it holds a certain amount of oil and grease.
They also have very thin walls, which is pretty handy when you're trying to evolve the second elbow and 8" long fingers needed to service a Ferrari 512TR.
IMHO, overall, better or worse than the other premium brands is entirely subjective



Do you happen to know what models and years had it? Id like to see what type of system they had.
Evidently. That, and the never-ending Harley vs the World debate. Can politics be far behind?