You can check for crappy tires not by just going WOT at a standstill, but also by going around turns. Crappy tires will also moan and squeal when you push the tires even just a little bit around a corner. Bad alignment will pull your car to one side if it's bad enough or by different wear patterns on the treads. Also, try braking real hard. Crappy tires will squeal and skid more than sticker tires.