Tension measurement for synthetic fibre rigging

[patrik111]

All,

What is the general approach to achieving a controlled tension if synthetic fibre rigging is used?

I would like something that would allow loading of the stays to get some forestay tension, but not load too much.

Intended use is for a Tornado rig with larger jib on a light sport-boat. As jib area will increase I would like to increase forestay tension without doing it all with the main sheet as this could possibly cup the main.

Kind regards
Patrik