Acros 100 diafine

[Bruce Weitzman <bruce@xxxxxxxxxxxxx>]

I'm about to develop 20 sheets of  4x5 Fuji Acros 100 in Diafine.  Does 
anyone know how many sheets I can safely develop at once?  I usually do 
4 or 5 sheets at a time using hangers and tanks.  How long does it take 
to exhaust the developer?  I heard you can do a lot of film with one 
mix.

Thanks,
Bruce