Anyone using SSR Integrals 16/17 combo having problems with tire wear/balancing? I was previously running stock 15/16 wheels and had an alignment done before fitting my SSR's. The rears (Yoko's) lasted about 5000 mi. (normal) and seemed to wear across the center faster than the outer treads (normal?). The fronts now have about 6000 mi. on them and the inner tread on both is wearing faster than the rest of the tread (normal?). I recently started to get some steering wheel vibration at 65+ mph and had the wheels balanced. The shop pointed out that both tires were cupped and that the original balance was way off. After three tries at balancing, the vibration is still there. I put the original 15's back on to rule out any suspension problems and sure enough, the vibration goes away. Now that my fronts are cupped...Are these tires trash now or should I find a shop that can "true" them? It seems I've had a hard time getting a good balance with the SSR's from the get-go, yet two different shops have assured me that the wheels are fine.