I'm stuck between two tires. The size is 275/60/17. http://www.tirerack.com/tires/tires.jsp?tireMake=BFGoodrich&tireModel=Long+Trail+T%2FA+Tour and http://www.tirerack.com/tires/tires.jsp?tireMake=Sumitomo&tireModel=HTR+Sport+A%2FT Yes, I understand one is a highway tire and one all-terrain. Problem is, my full size spare is a Long Trail Tour. I plan on relocating to Colorado this year, where my truck will see plenty of off road, which prompted me to consider the Sumitomos (all terrain). I do plenty of highway driving too. Since I already have a new Long Trail Tour as a spare (bought 8 months ago), I can save money going with 3 Long Trails, and keeping one of my old tires as a spare; Instead of 4 new Sumitomos. Question is: Will the Long Trail Tours, classed as a highway type tire hold up to moderate off-road use? The terrain I drive on out there is dry, sometimes loose and sandy on uphill slopes. Should I spend the money on 4 new A/T tires, or press my luck using H/T tires?