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Old 03-20-2013, 10:25 PM
88 PS190 88 PS190 is offline
MC Maniac
 
Join Date: Aug 2005
Boat: 1988 MC Prostar 190, 351 Ford
Location: Midwest
Posts: 3,451
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Vertical PVC poles mounted such that the boat can ride up and down on the rubrail.

Or those fiberglass poles shaped like whips that hold the boat away, and ropes to pull it back.

Realistically if you have vertical PVC surfaces the boat will ride up and down with out catching, it just needs to extend far enough up and down that no matter what wave the boat cannot slide over or under the pvc.
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