oops, no offence taken. been driving for less than 5 years, this is the first time i have to change tyres. did try to figure out the other day, but no luck. maybe it's the dirt under the car made the marks difficult to see.
anyway, that tyre is history. there is a puncture on the shoulder which instantly reminds me of a "non repairable area" pic i saw. the shop owner said it's very difficult to repair on that part.
also there is another wound on the rim protector.
i did hit a hand-sized stone with that tyre a few weeks ago (construction sites and inconsiderate trunks everywhere), still no idea what caused that puncture exactly. i even examined the ground the other day at the gas station.
ended up with a new tyre, luckily had an on call job yesterday, had to work the ars off me to make it up.
the rubber on T1-S is rather soft, or maybe just because it's new? i had the stock Yoko A460 on the spare, 35 psi is a nightmare with it, bumping all the way to the shop.