I currently quickly updating our F16 website with these pictures and a few more. A few.

The picture you talk about it the block that set and retrieves the gennaker on the ventilo Zipo. It is fitted right in the middle of the trampoline and looks like a good setup for singlehanding. Especially when snuffing. the sailor only needs to reach out to the line and go right back to the luff hull and do his work from there. The setup also looks simple enough to be able to retrofit it to any existing design.

Wouter