I don't know if my experience is typical, but I bought a stock crank from Butler, turned .010" . Had to be remachined to fix it, journals varied by close to .001. And the key was still stuck in the dirty crank snout so well I had to TIG weld a piece on it to get it out.
However ... Butler does not do the machining on their off the shelf stock cranks, it was machined by Lunati. At least that was the case a couple of years ago.
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