Tomi,
Spend a week up there and you'll understand what Tom is saying. You can fish / sit at the top of a poll for 8 hours. Not a rise, no bugs. Your buddy is 1/2 mile away at the tail of the pool. Blanket hatches all day long, hundreds of fish feeding and a camera full of proof. It's one of the craziest place to try and unlock. You sit at the diner in the morning and listen to fishermen. "Did you guys hit that caddis swarm?". Other guy says "Caddis? We had blanket hatch of blue quills, olives and grey fox". Guy in booth behind them turns around "Where was that? We had a heavy drake dun emergence most of the afternoon".
Tom,
I haven't been float all THAT long. Waded it for years. I can say that wading is much more enjoyable and usually more productive.....unless you are rowing down ahead of the hatches. The real benefit of floating is accessing fish that can't be reached by foot and vacating dead water quickly for more productive pools. The downside of floating is the potential traffic jam of boats, high wind and the likelihood that you row right past good fishing. Given the choice, I'll take float 90% of the time as its dramatically increased the number of fish put in the net. Some days it's just covering miles and hope for the best. Other times of the year, is short floats with lots of anchoring and wading. When it comes to streamer fishing, there's no comparison.
I think there some agreement that locating fish on large water is only one of the hurdles. To me, wind is the other real demon you have to deal with. If you can get 40' from a feeding fish but the wind is steady in your face at 20-25" that fish might as well be a mile away. Conditions will not allow you to wade into a position that puts the wind at your back or your side. That's something not typically dealt with while fishing he LL or small brookie stream. Fly fishing is hard enough and big water adds a few more variables that usually make it tougher. I love the punishment / challenge.
Tom, I owe you a float next time we are both up there.