That rod is a pretty fast stick and was designed for distance casting. So unless you are use to casting fast action rods then over lining makes sense. I have cast that rod but would never have thought that you would have to go up two line weights in order to load the rod and make a decent cast. But like everything else in this sport, each person's mileage may vary. Glad you got things worked out.
" If a man is truly blessed, he returns home from fishing to the best catch of his life." Christopher Armour