Don’s right. My “improved” internal system failed the first day. Rigged an out haul system worked but not well.
This year I’m going with Meriachee’s design.
Ward - question: did you test how the blocks work before installing them in the boom?
If they worked then, do you have any idea why they didn't work when installed?
Are so many sheaves really needed?
Frankly, after looking at the picture with all the block setup that would go inside the boom, and knowing the route to the mast then via turning blocks to the cockpit with more sheaves, I would have been surprised if it worked all that well. Blocks like the setup in the mast have a way of twisting and if there are other line(s) in the boom one of them can prevent a block from rotating and causing a twist between the two block, more friction between one line and another, and only god knows what ...
Personally, I would not want an external anything on the side of the boom because that's a snag point. As pilots say, "Trouble comes in bunches." *Stuff* happens.