I started a thread a few months back about which Kodak RA-4 chemistry to get, and now that the Kodak paper is gone, I feel like I should ask again. Someone had mentioned that Fuji paper and Kodak chemistry did not work that well together. What other chemistry can be used with Fuji? I order a lot of b/w materials from Freestyle, so what about their Arista kits? What about the UltraFine stuff, chemistry and paper? Any help would be appreciated. I don't need to do room temp, as I have a Nova slot with temp control (or I can use a food warming tray I got for lith printing if i decide to use trays). How long would the chemistry keep in the slot processor, assuming it is well-covered and full? Thanks.