Added 7  1/2 degrees of twist into the top half of the port bundle.  Found that the shot did not move right far enough to have perfect agreement with the line of the bolt groove.

Added 7 1/2 degrees of twist into the bottom half of the port bundle.  This caused the second shot to move too far to the right.    And so again,  the bolt’s flight did  not line up with the bolt groove that is carved into the flight deck.

Added 7 1/2 degrees of twist into the top half of the starboard bundle.

Bingo!   With the third shot, we have the lateral line of the bolt’s flight  (i.e. the plan view of its parabola), coinciding neatly with the line of the bolt groove.

After six shots today, the string held a steady position just skimming the flight deck with a slight downward pressure.  So slight is the down pressure that this Wilkinsian axiom of a neutrally positioned bowstring seems possible after all.  (Sorry RR.  I have to report ’em as I see ’em.)  More testing will be needed to see how this change effects performance.

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