Hi all, I got new tires with Enkei wheels in 2017. The tires I got then were Continental ExtremeContact DWS04 225/45-17. I also use Winter tires (Have them on wheels, so its just a straight swap). I may have done about 10000 miles on the summer tires. However off-late I was having extreme vibrations - in the rear right side, as if the car was wobbling up and down diagonally. I took it to a alloy wheel repair team and they verified the wheels and found no issues in them. They however found a lot of flat spots which was creating the wobbling. They suggested that I get it changed after this winter. I am in Ottawa, Canada, so winter tires are a compulsion here. I just got a couple of questions: 1. How common is this issue? Is the assessment accurate? 2. Any suggestion on better tires of same size? I have Costco here and can also use TireRack. So tire brands are not an issue. I am looking to get Michelin Pilot Sport 4s. Is this a good tire? I really am looking for Wet and Dry road handling. Am not so concerned with the ride quality. I just hate the road noise (Am looking at you Goodyear!) Any suggestions?