My old Kodak E-6 kit was no good, seems like the Arista E-6 three step kit appears to be the only one left in my price range. Is (or has) anyone been using it? Any comments, or tips, would be helpful. I have some Fuji Velvia 100f 4x5 and several rolls of RVP 135, plus some assorted rolls of 120 E-6 film that I plan on processing in it.