[ccp4bb] opinion : phaser RMSD vis-a-vis LLG, Z-score

[Bryan W. Lepore]

neglecting e-density, packing, etc. - what matters most to people when 
running phaser - LLG or Z-score?  in what function (RF, TF)?

further, if you 'refine' the RMSD to find the best RMSD, what is the more 
robust indicator - LLG or Z-score?

lastly - is it better to have a high LLG/Z-score with poor discrimination 
from other peaks or the other way around?

-bryan