I want to get my boat set up "by the numbers" i.e. halyards, sheets, cars, backstay etc marked up or referenced to marks on the boat/mast.

It seems to me that if we could consistently set the jib to a mark (as recommended in at least the Quantum Sails video) for wind strength we'd go faster, but I can't get away from the idea of wanting bowlines on the clew for safety/convenience. The idea being to use liquid tape to mark the sheet and have some numbers just in front of the primaries.

I know about marking the spreaders etc and will do that.

On race boats how is the jib sheet attached to the clew? I could just get some double braid made up with loops but then in the event of a bad wrap, for example, we'd be cutting.