No experience with the Hunt 650b wheelset, but I did run a set of XTR 650b wheelset (now up for sale) for a while. I rode them over all types of terrain with both WTB Byways 47 semi-slicks and Panaracer GK 48s and ultimately felt that for me, my 700c carbon wheelset with Panaracer GK 43's were better all around for what I ride. YMMV