Oh wow guys, thanks so much for the diagrams. I would never have thought to run the blocks like that, so it's really interesting. I was thinking of a series of 2:1 but trying to figure out how to stop the blocks from jamming up to each other in the boom.

Another thing i noticed about tornados from pictures (sorry none here in Singapore for me to look at) is that the deck are really clean. i am guessing quite a few lines, like the spinnaker retrieval line is run completely under the trampoline. is that correct? Any other lines that run under the trampoline? mast rotation? downhaul? thanks for the info