Feb 4 2011, 10:42 PM
hey, i've been reading a few threads on here and wats this backbone thing on blanks. Is it a pre defined line on the rod or is it something you mark out to guide you in placing your guides? Cheers guys
Feb 5 2011, 12:16 AM
It's how much final blank strength that is found in the butt section.
Feb 5 2011, 11:17 AM
I'm guessing you're referring to the spine (or spline). If so - it's a result of the manufacturing process that produces a line along the rod that is slightly less flexible. Opinions range on what to do with it compared to guide placement, but I subscribe to the "ignore it" theory, and instead build along the straightest axis.
Feb 5 2011, 03:31 PM
Has nothing to do with the spine of the rod, it's simply the power the blank exhibits when bent under a load. If two medium power blanks are compared and one has more power than another under load it has more backbone.
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