Coffman,
there will be a driver along soon I am sure but plotting out the trim forces on paper showed triple ULLA to be the worst. I remember the trim line went from one side of the trim sheet (not just the envelope) to the other. But the speed at which the extracted loads departed meant that these extreme trim changes were transitory and over very quickly. We did have an allowed extension to the normal trim envelope which was sometimes intruded into when dropping 1 Ton Auto split sticks. This was to allow for the fact that this load was dropped in two separate runs and with heavy containers the a/c could be nose heavy once the aft load had gone. You could land in this configuration but the Aircrew Manual caution min brake use and max reverse to keep the load off the nosewheel. At the very forward limit the a/c was then supposed to be towed in !
On para with wedge and door bundles and a lot of fuel the trim could be fairly well aft once the paras were at 'action stations' and all had shuffled down towards the rear.