You mentioned higher speeds which would point to weight becoming more of a factor as speed increases. I exchanged my new toyos for nittos that were about 6-8lbs ighter per tire on my street truck I would run at 90-100mph on frequent trips to cali. The steering is much more stable and with more feel than the heavier tires. Your setup for offroad is obviously not in that same league but the weight and everything being roadforced balanced is similar.Brembo brakes dont allow me to run 17" wheels, so running stock wheels isnt an option at this moment. Thats why it has 20" wheels