Proto frame, prod ones were all straight gauge, I got one of a small batch of single/double butted team frames as a warranty replacement. Didn't even realise until I sent it back for a respray and the guy in the workshop pointed it out, apparently some were built with the back end out of line (making the discs all but unusable, these were mostly scrapped) and most of the rest cracked. Unfortunately, it's actually slightly heavier than my straight gauge frame, which is bare metal and canti only.
And proto forks, first batch of rond quake airs. Officially 75mm travel, but built with "special" insides. Better damping, but less travel. Again, team issue.