I agree the tire wear is due to a bent axle. 15,000 miles is a drop in the bucket for the Sailuns. They will age out (4-5 years) before they wear out. I would buy another one in a heartbeat. The two reported failures of the millions out there isn't that big of a concern to me. If you are concerned about the Made in Vietnam ones, put it on as the spare and the original spare Sailun (made in China) on the rolling wheel. That way you have a good spare and can watch for further problems, or lack of them, with the Vietnam Sailuns.
Posting pictures on the MOC isn't too difficult once you know the process. Lots of members do just that. Be sure to take the photo in Landscape mode.
Go to
https://www.montanaowners.com/forums...ad.php?t=70323 and read posts #8 and #25. _