Please! I have been wanting to try a warmer approach to some prints that will likely be in a show in March. I want to experiment with sepia toner on Ilford MGIV FB, and Kentmere VC paper. I looked at what's available from B&H and found: Kodak Toner - 1 quart - $3.69 Kodak Toner II - 1 quart - $4.99 Berg Rapid RC Sepia toner - $10.95 Fotospeed - 1.5 liters - $19.99 Photographer's Formulary - HypoAlum Sepia - 1 liter - $13.50 So the obvious questions arise, i.e. what's the difference between these, and why do you suppose they're so different in price? Incidentally, some of these (the Kodak versions) cannot be shipped at all and must be purchased in store. What's that all about? Thanks in advance for any help and information you can offer!