I have heard about this drum but have never seen one (I currently use the 6-cylinder drums). Does the 10-sheet drum have 10 cylinders? Or does it load 2 sheets in each of 5 cylinders? If the latter, how do you prevent two sheets from accidentally overlapping during development? Do you load from both ends of the cylinder?

Also, what is the Jobo model number for this drum?

Is anyone selling one or two of these drums?

Can the drum designed for 5 8x10 sheets be used for 10 4x5s?