Re: curvature
I'll also point out that the one you linked is the version of the regulation that was repealed in 2011, and the updated one is here
The workding hasn't changed significantly in the area in question, so I'll let you off on this one, but it still deosn't practically define what "abnormal" here, so one can reasonably suggest that the requirments go something along the lines of perfect (good)-> slightly imperfect (ok) -> wonky (ok, but sell as class II) -> serious misshapen (probably indicative of disease, unsaleable, probably moot because nobody would buy it anyway).
Biting the hand that feeds IT
