Good luck, I think if you end up with a Hydra you will be quite happy with it!I follow you Jon A, as a good transporter which goes all the way at all times, a smooth fat bike rider it should be..!!
I think there might be something to that. The tires designed for good traction offroad need a supple casing so they can deform over uneven surfaces, a road-oriented tire maybe not so much. Anyway, I think you'll be happy with 27.5+, lots of tire choices in those sizes as well."We have received some feedback that these do have some self steer-- The tread is fairly stiff to last longer on pavement."
Noteworthy is the fact the knobby tires don't seem to have this self steering problem. My bet is the difference between street tread with their big contact area on the pavement surface, and the knobby type with much less contact area, is just enough to cause this issue.