[quote=JohnES]You really can't pre-tension (load up) the main beam and dolphin striker while the main-beam is still on the boat. It needs to be taken off and done if you want to do it correctly. Using a string from end to end on the main-beam you should have about a 1/4" bow at the dolphin striker. If you don't want to take the beam off, at the least, loosen every thing up.[/quote]
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