Originally Posted by
Landgolier
I don't think it's a bad system per se, I just feel like it's a solution looking for a problem. I just worry that in 10 years it's going to be like any other jingus proprietary stuff that's going to be impossible to find and $$$ when you do (see also: 10 pitch, 151 chainrings, French thread anything), while ISO drilled cogs aren't going to be a big deal to get your hands on.
Also note the level hubs are CNC'ed. Dura ace NJS are spun. According to 11.4 they are equivalently strong with the added fact that the level hubs have to be heavier than the DA's for the same strength.