Runout means the chain wheels aren't perfectly round and cause the chain to be either too tight or loose in rotation. Given that VO put so much effort into getting their own cranksets made, I have a hard time believing that they'd allow such an issue to occur.

VO brakes, and a lot of other things they sell, are rebranded Dia Compe with a few spec changes from the factory. VO orders enough to get products tweaked to their liking, so it's a bit more than slapping on a sticker or etching a logo. Dia Compe doesn't generally make junk. So again, I have a hard time believing serious quality issues.

The wheels on the other hand have been known to get laced together out of true by whomever builds their wheels. So that I can believe.