I currently have 8k on both front and rear set of PR2's. I will be leaving on a 3k trip in 3 weeks. This is my first set of PR2's. I am having a hard time guestimating how much life is left in these tires. The wear bars seem pretty deep in the groove and not exactly right in the middle of the tire where most of the wear is. I have a set of PR3's in the garage ready to be installed, but the cheap side of me hates to take the PR2's off prematurely, but the safety side of me wonders whether the PR2's will make it my entire trip. Seems like most of the posts about PR2's have been showing something like 10-12k, while some are getting much more than that. My trip will be from eastern Kansas to Vegas and back, about 1,500 miles each way. Hate to start another tire tread, but sure would appreciate feedback from those of you used to using PR2's.