We recently picked up our Model X and had Discount Tire install a set of Tsportline 20" wheels with the OEM tires (Continental). On one wheel the red dot on the tire sidewall is aligned with the valve (perfectly), but the others appear to be completely random. That dot-aligned wheel (front passenger) needed 6x1/4oz weights to balance it. Front driver has only 3x1/4oz. But the rear wheels have 15x1/4oz on one, and 16 1/4oz on the other. According to Continental if more than 40g=1.4oz of weights are needed the tire should be remounted rotated by 180 degrees to improve the initial balance (https://blobs.continental-tires.com/www8/servlet/blob/554548/e3119edf983...). Am I right to think this likely represents a lazy (sub-par) installation by Discount Tire? Should I go back and complain? Or is it pretty common to see such a large number of weights needed on after-market rims like the Tsportline?
Thanks for any advice!