I rotated my P7 Cinturatos per AR recommended interval at 10,000 miles. Went to dealer asked for 20,000 mi service, brake line inspection recall with just over 21200 miles on the odometer. When we talked after service was complete, he said tires were at 3/32", they didn't rotate them because that is when they recommend replacement. Maybe could've done better with 5000 mile intervals, I don't know. Researched it to death, decided I didn't want another set of P7's for $240 each plus installation and expected 21k to maybe 25k mikes. Bought Michelin Pilot A/S 3+ for $211 each, plus installation. They have 45000 mile warranty. Ordered a Slime tire sealant-compressor kit from Amazon and put it in the trunk before I went to Discount Tire. Used DT credit card and another rebate, will get 15% back as Visa prepaid card. I can't manage every risk factor, one time I drove through a patch of nails on the road on the way to the beach, had three slowly leaking tires simultaneously and had to drive to nearest tire shop for repair. I'm comfortable with my choice and the tire ride and reduced noise were amazing on the way home. Non run flats or just new tires with 10/32" tread? I don't know but so far I like the idea of skipping one $1000 tire replacement between now and the next 40,000 miles. I own, don't lease, so no worries there. Just did the change yesterday at Discount Tire in Dublin, OH and the wheels were unscathed and I notice a lot fewer wheel weights than were installed on the OEM P7s. As they say figuratively and i say literally, your mileage may vary.