[QUOTE=Bob F.]For those not already aware of it, try the Massive Dev Chart at DigitalTruth:

Of course, as always, these are starter times - you will need to tweak them to fit your methods and equipment.

Cheers, Bob

Boy, are you correct, Bob. I relied on that Web site's time recommendation (16 minutes) for developing Acros 100 in Microdol-X diluted 1:3 and my negatives were flat, showing insufficient contrast. I added 4 minutes and finally got great negatives.