Can analogue Hall sensors be used in BLDC for static angle measurement?
It appears I have answered my own question in the affirmative by finding the paper: 
Position Estimation and Control of Compact BLDC Motors Based on
Analog Linear Hall Effect Sensors which all though specific to pancake styled motors I'm sure is adaptable to traditional radial flux motors.

Also found information on analogue hall sensors being used in commercial motors in FAULHABER application note 162 Analog Hall Sensors