I contributed a few photos of my new Hillborne in the mustard thread, and have a few more to contribute here.
I purchased a used Waterford-built Atlantis about 10 years ago, and it was perfect in every way. A worm must have found a portal into my brain because I sold the frameset after a few years of ownership. It was a significant mistake. This Hillborne has filled the void. The geometry is damn close to the old Atlantis, and the new Hillbornes have the requisite tire clearance and DT shift bosses that I desire. It took Grant a few iterations to arrive at the perfect machine. It would be better than perfect if it had a threaded mudguard boss beneath the seat stay bridge, and a third set of bottle bosses beneath the down tube.
The tires mounted at Hutchinson 45c Tundras. They measure 49mm on the DT TK 540 rims (18mm internal). Most of the parts were originally hung on my old Atlantas. Someone did their homework when they made those parts.