A big part of the problem with whether to/not to is the increased lack of automotive machine shops around here, I don't know if any within a couple of hours drive that "for sure" offer that service, there are a few machine shops within that radius that I've used, and none have offered to balance anything that I've ever brought in so all I can do is assume they don't. The 2 closest to me can polish a crank, but can't machine them, both have to farm them out that need cut down.