Are you sure they had the beads set? I mounted my E3 on the front rim and couldn't get enough air with my small compressor to get it inflated. Took it to a local tire place and had them inflate it. Took it home and put it on the bike and it wobbled way out. I put almost 80 PSI in it before I heard that last pop. It was ok after that. Good tires!!!
Yes they made sure it was set . they even broke it loose and slid it around some and inflated it twice still wobbled.
Tried 5 oz of weight on it and still no good.