From experience wear issues go away really quick when a proper alignment is done. The uneven edge wears out the sharp surfaces/higher surfaces. My wife takes the car to work about 3 times a week, about 20 miles one way, or 40 miles round trip. I think my posts haven't been clear and I apologize for this as I have just reread some of them. This is primarily my wife's car. So when I picked it up from the alignment I said I'd drive it to see how it feels. I waited until the next morning when the tires were cool to adjust the pressures and found them low about 4 PSI. (I had the tires rotated first, then brought it to the dealer directly to have the alignment done...)
I'm afraid these were the front tires that I had moved back, (and watched them do the rotation,) at America's Tire. So these were the tires with smooth surfaces from the front/no wear issues. Also, I drove straight to the alignment that morning, about 5.7 miles. I don't think the tires had enough mileage to wear like that in 5.7 miles. (I think I did check the rear tires when all the work done and they were smooth.) Now the front tires are smooth.
I did realize I made a mistake in my last post. It is the left rear tire, wearing on the inside (right) edge, that looks more like cupping than it does sawtooth. The right rear tire inside edge looks pretty good as I took another look yesterday after I posted.
Thank you for all the advice. I am sorry if I wasn't clear.
(Now that I recall, I had the McGard wheel lock key with me, the dealer could not have rotated the "bad" tires back to the rear.? I asked a tech as I was walking out of the SAs' office whether they'd need the lock as I had forgotten to give it to the service adviser, and he noted they didn't need it for the alignment.)
The car has always driven wonderfully smooth from when we bought it, to when I noticed the strange wear on the tires. It seemed like there might be a bulge in one of the tires as I was driving on the driveway at slow speed, so that is when I looked at the treads and noticed the uneven wear.
Edited by jzchen, 12 February 2017 - 06:04 AM.