Interesting comparison with the N4 and HD4. I would have assumed they would have been more similar considering that their, unsagged, geometries are nearly identical.
great article....I have ridden a lot new bikes over the past year, it is amazing how much time I spend dialing in the cockpit - mostly the stem, spacers, bar length, and bar rotation. I have learn to appreciate the impact that all of these have on controlling the bike and finding the position that optimizes its comfort. Bar roll has piqued my interest as of lately and how important it is in frontward or rearward weighting of the bike. I personally feel that as bikes get longer this takes a priority.
My friends think I am crazy until they try it out and recognize the impact.
As much as I have tried to use <50mm stem, every time I come back to the 50mm.
saddle is pretty easy to set-up...I use the same saddle and drop a weighted line off the nose to find the same spot relative to the BB.