>>Since this technique depends on Randomization working as well with long >>Schedule Durations as with shorter, does anyone have experience with >>Durations of four hours or more? Did it go alright?
Do it all the time. Whenever I set up a new customer, I tell them to make the Duration window as big as they can tolerate (usually 8-12 hours), throw all the clients in. Then see what clients cause a problem, and make special schedules for the clients that need to be forced to more particular start/run times.
