Digital BW, The Print

New member here, although I have been reading...and learning.

Have the Epson C86 with Paul Roark's EZ inkset from MIS (matte, 
neutral).  I've very pleased with the results.  (Well, more than 
very pleased--experiencing again the satisfaction I had in the 70s 
first learning to process and print b&w in the darkroom.)  Also 
having success with, and enjoying, Clayton Jones's black-ink-only 
technique.  Thanks to both of them for their work--and to all here 
who are keeping up a fascinating flow of information.  Printers, 
paper, ink, discussions of Weston's aesthetics and techniques, 
whatever, I'm checking back often and just drinking it all in.

I'm eager now to try various papers beyond EEM.  My question is 
simple.  Epson says the paper handling capabilities of the C86 
are "64 g/m2 to 90 g/m2. Up to 250 g/m2 with Genuine EPSON paper."  
Does that match up with the experiences of group members who have 
experimented using this printer with different papers?  Can I assume 
that any brand name matte paper up to 250 g/m2 will work without a 
problem?  Is that the upper limit?  What about weights in the low 
300s?  Also, how should I factor in the specs on paper thickness?  

Well, obviously, this turned into more than one question...