I printed with the Durst 601 using the condensers vs the color head; still working through the CLS illumination issues. I'm answering my own questions which may assist those looking at buying a used 601. The Saunders 14x17 inch easel is not restricted by the column with my enlargements. There is a neat trick to extend the head a few inches on the mount bearing to give more easel room if required.
Most of my 645 MF enlargements are full frame on 8x10
When not using a speed easel I use one of two four blade easels. With a 33 inch/85cm column I expect the base of the column will obstruct the smaller Saunders 11x17 easel when printing 9x12 inches in a portrait orientation.
What is the most convenient 4 blade easel to use for my size enlargements with a M601?
Does a M601 heat up with a 75W bulb?