hi, I got Jobo expert 3010 drum but I have no idea about the required rotation speed. My current (diy) processor was designed for drums with much smaller diameter. As the diameter of expert drum is so big, it will give a lot less revolutions per minute. That is about 10rpm Is that enough? I use rotary processor for E-6, C-41 and BW with D-76 1:1, pyrocat-HD 1:1:100, D-23 as two bath and Emofin.