The bronze hard stops have been removed.   They used to be lashed into the pockets of the curved stanchions.    My experiments over the last week have focused on trying to balance the effect of hard stops that provide a fixed stopping point for the limbs, with the needs of a bowstring that must always feel tight and snappy in the at rest position.   This balancing strategy had become a maintenance nightmare of epic proportions.   Finally,  the time had come to ditch all those beautiful preconceptions I had nurtured for so long about the necessity of hard stops to protect the bowstring.

Our previous attempts at making the bowstring act like a limb brake had all met with failure when the bowstrings kept tearing in two.   The dacron yacht braid they were made from back then was of questionable provenance.   This latest stuff is  5/8″ Samson XLS and is rated for 13,000 lbs.  It seems to be just the ticket.   Now the smack of the power stroke is arrested entirely by the bowstring.

With the hard stops removed there is now a gap between the limb and the stanchion,  and there is no question that the bowstring is always taut in the at rest position.  Velocities are now averaging 300 feet per second with a 6900 grain bolt.  Vive! La difference!

While persistence makes change inevitable, it can also cause long delays when false assumptions are not thoroughly rooted out.  So much for compromise.

Here is our righteous bowstring doing the wapata-wapata  dance.  The limb bounce seems to be way down too.

Click for 4 x slow motion Vid.     20111116132702(1)

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