The biggest killer of graphite rods is impact against a hard object. It may not break in that spot the day it happens but there will be a weak spot at that point. Keep this in mind when stowing rods for travel. If you are keeping them on the deck, strap them flush against the deck so the become a part of the deck and aren’t rapping against it during travel. If you are storing them in a locker, do the same or put them in a horizontal holding system, where they won’t hit the side or floor of the locker. If you are the non boater and your partner doesn’t have room in his locker, try to find the spot that minimizes the repeated bouncing they will take if they are laid over the gunwale. If you have to, lay them over your leg when running the big engine. It's never fun to set the hook on a good fish and end up with a three piece rod.