Thanks for the input. I tried the Jobo (as I have the necessary developing tank) but got dreadfully uneven development. No doubt it was my fault. I don't have a lift on mine so it was awkward getting the timing right. The development time was even shorter because of the constant agitation.
I would welcome any advice about the correct way to use a Jobo processor for film processing. I assume you use the slowest rotation speed possible but do you use rotary agitation or the rocking agitation?