Digital BW, The Print

I have been using Illuminata Alpha Smooth as a proofing paper for 
Moab Entrada Natural.  Moab's Kayenta has the same description as 
the Alpha Smooth, but doesn't mention brightness.  I ordered it and 
found that it is very bright paper, brighter than Entrada Bright.  
Its not what I expected, but at $68 for 50 sheets of 17x22 from 
Inkjetgoodies it will find plenty of use.  Has anyone tried Kayenta 
with QTR?  I'm sure the Entrada Bright curves would work pretty 
well.  Has anyone used any others that worked?  What adjustment do 
you make to account for the extra level of brightness?  

Andrew