Originally Posted by Bass Ackwards
Did you ever read the rod warrenty that comes with each rod, if my St. Croix rod was to break using that line and I sent it in for warrenty, it would not be covered because I exceeded the line ratings.
I've never, ever, ever heard of a company even asking this. It may be in the obscure verbiage found in the warranty -- I never read these things -- but I can't remember a single instance of a company ever even asking this. Here's why:
Let's say a rod is rated something like 15-30 lbs. If you fish 20 lb. mono, all is right with the world. But what happens if you switch to 30 lb. braid - which will probably have a true breaking strength somewhere around 45 or 50 lbs.? Does this invalidate the warranty?
Eebs is right: line weight, except in very specific applications, is an anachronistic measurement that doesn't mean anything. Do yourself a favor and ignore it.