What is the most important DOWN Accumulator?

[metallion]

Are you asking about Accumulator or Force?

6-B-2-0: When the Left Wrist is Cocked it forms the Second Power Accumulator.

while:

2-N-1-B The Downward Force results from the action of Axis Tilt (Hip Slide) and/or the Uncocking Left Wrist if there is any of either. Otherwise the Lever assemblies are dropped, pulled or pushed downward from their fulcrums.

Pretty complex!