I'm looking to re-run our F18 mainsheet. I've seen pictures of T's and A class cats with the sheet running out of a block from the middle of the trampoline, or off the middle of the boom.

Any insight on how well these systems work? Can they be cleated and released from the wire? Also, for systems that run from a block on the tramp, how is that block attached to the fabric so that it will not tear out?

Thanks