I agree wholeheartedly. I always try to fish the heaviest line i can get away with. But like Al mentioned some lures require lighter lines to work properly. For Bass fishing, my spinning gear is always 8 lb P-Line CX Premium, and my casting gear is 10,12, or 15 lb P-Line CX Premium. Crappie/Bluegill gear is 4 or 6 lb P-Line CX Premium. Catfish is 15-20 lb Berkley Big Game. Walleye is 15/4 braid. Cranking the "big" river for anything that will bite is also 15/4 braid. That's about the extent species I target. If I fished trout, I would use 2 lb.