Is your mav one of the early ones? I know some of them had junk starters in the beginning that would leave you stranded. I vaguely remember someone posting pictures of the starters with issues and starters without!
Semi Related I guess, but I don't what it is about the dealerships failing to properly tighten battery cables but I've had about 3 buddies with new machines that had mystery ghost electrical problems that would come and go... Turned out to be the battery cables weren't tight! Such a simple thing that you take for granted the dealership did when they uncrated the thing.