Join Date: Jun 2001
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Just remember to put a snap shackle on the end attached to YOU!
Do NOT use a carabiner to attach the line to your harness. You must be able to release yourself even under load.
And I wouldn't use a climbing carabiner to clip onto the jackline either. They are NOT SS and not made for a marine environment.
That said, no reason you can't make up something just as good as store bought.