just built up a set with ind 9 classic hubs. came in at 1650grams on my lbs scale. shaved quite a bit of weight over my ind 9/arch set.
the lower weight is awesome but what i have really noticed is the stiffness of the rims vs my previous set. much more stiff, to the point that i actually feel the bike handles quicker and is more responsive
will report back in a few months as to the durability of the set, although i expect they will continue to be awesome in all regards. hard to say they are worth the $$ but they are definitely better than i expected so far