Seven Axiom SLX, 4-season and all-road

When I consider the rider I am, and the rides I want to do more of and want to target, it's long distance solo, overnights, multi-day, mountains. I'm not the fastest rider, and I carry more than I need to, and I'd prefer to feel more faith in the discs than the gingerly rim descents.

So you are talking stuff like Transcontinental, then its fair enough.

IMO build it for Campag EPS hydro as at least thats announced .. if you cant get hold of it by the time its ready go with Sram Etap HRD, you will just have one tiny hole for cable entry somewhere that will be redundant in case of Etap.

142x12 and 100x12 looks like the 'road' standard that should stick mainly because shimano is up for it. DT swiss makes hubs for this standard at 350, 240 and 180 levels.