I need the placement measurements for the Spin Tang. I have a comp-tip mast. I have all of the hardware and need to know how exactly the return line feeds through the tramp back into the sock and out to the chute. I understand the principle of a single line system and have seen some rudimentary diagrams, but need more info...I have heard talk about some sort of a block on a spring that is mounted on the tramp that the line passes through. Anyone have Diagrams and or suggestions? I have seen the one posted referring to a NACRA but it didn't help much. Thanks Darrell