[HungryBear]

You explained it well. How does this sound? Accumulator #2 when activated using PP#2 is Direct Drive. When #1 Activates #2 throught the #3 PP, it's Indirect Drive. Hmm? I'll check that against the book and return.

So, when the #1 Accumulator Uses the #1 PP to Activate the Primary Lever, it's Direct Drive. I have no clue why it's called "Passive Direct Drive" for the #2 Accumulator for Swinging, because as far as I can tell, the #1 Accumulator is "Simply Passive".

Would this be ref. sequenced release and simultaneous release??

ALSO

There has to remain some pressure, passive is sufficient, or the whole assembly will want to swap ends - an arrow flies heavy end forward- loose the lag and the system looses control and wants to swap ends, "ground loop" so to say. ( There is some physics to ponder)

HB