Setting up the BS trigger
I don't need to be in on the drawing, but I will re-post some pics of my version of setting up the trigger...I reckon they got lost in the crash. This is a real nice arrangement, and can improve range as well as accuracy. If you are the winner, you'll want to do something like this, trust me.
It achieves 2:1 ma on pulling the shot rubbers into place, so it's easy to use. A baby distal hitch captures the gain. The end of the cocking cord is fixed to the pole with a prusik hitch. Load the bag before tightening down on the shot pocket...it gets pulled closed tight, makeing it hard to get the bag in deep enough otherwise.