[CraigS]

So, the spin rate distribution is just that .. a distribution. Whilst it seems that perhaps, size-dependent mechanisms (such as YORP), appear to result in population of the outer regions of the distribution, there still seems to be unexplained phenomena, such as the occurrence of large asteroids having slowed rotation.

It would seem that 253 Mathilde is one example.

Perhaps the 'Higgins anomaly' has other cousins out there .. both discovered and undiscovered. (?)

Cheers
PS: My point here, is that just because David's observations don't confirm the theory, doesn't mean they are 'in error'. I don't believe anyone should accept this (provided of course, you are absolutely confident that they aren't in error). As I mentioned, all measurements are subject to 'uncertainties'. This doesn't mean they are in 'error'. Uncertainty is quantifiable.