No mention of the N1 set in that sticky (I looked) - they only mention DZ by brand name, and I'm confident they imply the spring/sleeve kit only. The N1 is a threaded body strut set. My hopes are that they may have gotten their engineering act together, but likely we'll never know (or rather, we'll know what we already know). Another thread here has a guy talking about when he worked for DropZone and the management was all "hush hush" about spring rates. The guy figured that they reverse engineered existing sets.
As it is, I wish Progress was on the ball for the B13 three years ago like they are now. *sigh* Shall I replace my suspension a third time??