Big dries, weighted flies, streamers, multi flies, long leaders, strike indicators, sink tips, split shot, are all buggers to cast, even without much wind. Add long casts from float tubes and that's why you need some extra horsepower. And should all the stars and mayflies align, and the conditions get calm, you'll want fine diameter tips that can still protect light tippets and offer trout fishing versatility. G•Loomis