[quote=MN3]actually, on a spin pole they have a few uses but i have never heard of crushing being a reason why.
1. end caps are often used for internal tack lines, they come out the end and up to the block. Delron works will dyneema and alum for any line. SNU sells an alum one
2. to avoid "cookie-cutting" of any object you run into (another boat, person, etc) a "cover" is required in the F16 rules i believe for this exact reason
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