In the next three posts you'll see the three picture of the quick release of the ratchet blocks that are fixed to the mainbeam.

later today I will try to make a pic of the system fitted to the boat.

But for clearification. These block rest on the trampoline while the force is transmitted through the lines to the mainbeam itself. I have two small grommets in my trampoline about 100 insides of the hulls and about 30 mm to the rear of the mainbeam. In the third picture, showing a piece of mast section as replacement of the mainbeam you must imagine that the trampoline and grommet ar between the shackle of the ratchet block and the bead on the right hand side.

If you are really insecure that the bead can be run through the loop a second time and be completely stuck. However up till now this system has never undone itself yet. Nor is it likely to do so because I made the loop relatively tight and the elasticity of the trampoline allows it to be fitted and also pulls the loop tight even when there is no tension on the sheet or block itself.

I'm quite happy with this system.

Wouter