If building your own selftacking setup then do it like this :





It is the best way, the cheapest way, and the least complex to get a 1:4 purchase on your jib sheet (that you'll need)

In addition the bungee at the back keeps the sheet flat on the trampoline and keeps it tight while allowing the sheet to move fully to either hull when pulled.

Use 2 RF65 360 degrees cam cleats on the mainbeams and a large stainless steel line at the back of the trampoline. A large steel ring will run more smoothly then a block and is cheaper as well. Extra advantage a large diamter steel ring allows possible knots to pass while a block doesn't. The two blocks on the spi pole are best turtle blocks but could be a single doubleblock on a eyestrap as well. I have two single blocks there with some line, this works also but I had to be careful for them not to rub on eachother. All the other blocks are just simple microblocks.

The rail/car/fasteners I have is AHPC's see pic :





Wouter