Loosen tolerance in orr-som test to get better accuracy. 

Probably what happens is that when we shoot for the moon the ill-conditioning starts to hurt us. In particular, aiming for 9 digits we get around 8 digits in the critical eigenvalue and the coefficients look nice happy to around 12 digits at length 90. Aiming for the default 10 digits we get 4 digits and there's a nasty bump in the coefficients at around this level.

*shrug*