Prindle 15 rudder line

Hello prindle sailors. I'm trying to figure out the right line diameter, the right length and which brand or quality of line I should buy to properly operate my prindle 15 Rudders. Any helpful suggestions are appreciated. Thanks.

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Frank
Prindle 15/Hobie 16/Hobie 14T
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A buddy of mine who sails prindle 16 swears by this stuff. It's not cheap.

https://www.murrays.com/product/39-1309/

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Ron
Nacra F18
Reservoir Sailing Assn.
Brandon, Mississippi
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Looks like good stuff. Thanks.

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Frank
Prindle 15/Hobie 16/Hobie 14T
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dyneema works well