See here the quick rotation setup of the Nacra Infusion F18
Here the planned Typhoon quick rotation release system (project is halve finished right now :
If the single block setup doesn't work out as planned then I will add a second block at the base of the mast.
Next, the way I run my downhaul lines ; The red and part of the blue is underneath my trampoline.
I got enough slack in the system to work the downhaul from the trapeze, but when not in use the line is strung just taught, giving a clean deck layout and not foiling up other lines like the spi sheet. I have the line run through SS rings that are attached to my shrouds but I just saw a friend using very cheap and lightweight aluminium clips that mountain climbers use. I think he said he payed a few bucks for 30 of them. These speed up rigging considerable as you can just click the lines to the staystay instead of having to run them through rings.
Red line is of course a bungee
I hope this helps.
Wouter