WOW! I just figured the little cracks were from how I beat the life out of my treadrights! I have had the same cracks in mine forever, and never had any issues with them, and I have over 60k on them. Doubt they would do anything about it now though. The cracks dont seem to be getting any worse, and my wear seems to be far less then normal if they were real "BFG's". I prob. have 70% tread left on these tires, and love em! Think I should give them a call?