I just noticed that occupancies of riding hydrogens are being refined by default, in fact I am unable to turn this feature off (CCI-APPs from Jan-8).  I was just (very naively) wondering what is the rationale behind this? The B-factor refinement for riding hydrogens is already enabled and should take care of this or not?  It looks a bit odd to have hydrogens with occupancy 0.9 sitting on a carbon with occupancy 1.0 at 2.0 A resolution.

Cheers

        Carsten