We all agreee that moving weight to the rear is crucial.
If you dump the main, the top of your sail will twist. When bearing away the top of the main will produce a lot of forward drive, while the bottom of the sail will stall. Therefore, dumping the main sheet will increase the moment that tries to pitch-pole your ship?
Dumping the traveler will maintain pressures in whole sail. Hence, there is no large difference between top and bottom in forward-directed force. However, when dumping the traveler, the main sheet is tightened somewhat, hence sheeting out a couple of inches is necessary.
Dumping the jib sheet may on many boats lift the bows slightly.
Tentative conclusion: dump traveler, sheet out mainsheet only 6-12 inches, release jib sheet.
Does anyone agree?
Perhaps - but you still have to control the power with the mainsheet with more adjustment when it's really cranking....like when you've already had to make a major ease just to get the boat down to start setting up for the rounding. Here, we're still at Mach 9 with the top half of the main inverted (granted we are reaching off slightly).
Speed is another important factor - if you can keep up the boat speed, the difference between your speed and the wind speed is smaller.