Just wondering how many miles to expect out of the stock Bighorn 2.0 tires for P1K-3 for mix trail / blacktop road use. I have about a thousand miles on the Bighorns and the wear groove in the tread is still pretty deep. Just wondering if running them down to no groove left is advisable? I would be interested in going to a different brand that has better wear resistance to blacktop roads and would also be a little quieter sounding, but at the standard stock size. Maybe a more road style tread that would be ok for most trail use. I do not ride the deep mud as there is not much of that where I ride. Thanks for any suggestions!