I like my wheel spacers from Mark so much that even if they had an issue at first, I would still reccomend them. They really feel like a quality product. It sounds like a quality control/shipping department problem to me. Obviously at the machine shop, not Marks end. He only sells 2 styles, adapters and spacers. Not that hard to keep them straight Mr. Machinist!
I'm glad Mark took care of the situation. He's been there for me every step of the way also.