Two words: gear rod. I sold my two switch rods and have settled for two full-on Spey rods a 7 and 9 weight. I'm still getting the casting down. I can get the bugs out there well enough but I'm no Simon Gawesworth yet. In BC I have had good luck getting fish on the strip using a floating line. That is the only real advantage I have found over a 2-hand rod as it is easier to strip with a single-hand rod. That and the initial cost of the outfit. The two-hand rod cost more and you have to get a larger reel to balance it out, which usually costs more too. Sg is correct, as always. If you are not catching fish on a single hand rod, a two-hander is not suddenly going to make them magically jump on your hook. As an old mentor used to say, the guy with rusty hooks, leaky waders, crappy flies, and poor wading skills but who can read water will out-fish a guy with all the modern gear but don't know where they live and why.