Digital BW, The Print

...
> Is it safe to assume that the heavier PA HotPress 325gsm would behave
> in a similar fashion than the more expensive Epson USFA?

Maybe better.  While it does not always seem to be the case, I 
generally have obtained a better dmax with Premier Art 325.  For 
example, comparing my QTR 1800 3MK profiles, you'll note the 
linearization table has L 17.46 for UltraSmooth and L 16.02 for Premier 
Art 325.

Paul         
www.PaulRoark.com