Definitely different tires for different dirt. My area is sandy clay powder loam. The one area that I felt the rear millville was superior was the side knob traction. When leaned over exiting med. radius corners the rear would hook up better than anything, allowing you a nice slide-wheelie exit, on the gas, back end only hanging out a foot or so. Other tires would suddenly break loose and you would be struggling not to slide out instead of wheeling and grinning. I can't wait to put these on my 450 especially the front. I would suggest that you at least try one and see how it works for you. I think I put a review in the review section long time ago. Cam.