That is not the case in the Smokies however. If you want to be super frustrated and go fishless for the day, take your stupid trout tail water method to a freestone full of wild fish and you will be schooled. These fish are fast, picky, and spook so easy that I sometimes wonder if they have some sort of sixth sense that lets them know when you are within a half mile of them.
This past Saturday I had in mind a spot that I wanted to fish that is going to be in my book. I had the right flies, I knew the technique, I was ready. However, when I arrived at this location, there was a gentleman standing right in the middle of the run casting as far as he could. He had on a red shirt, and a bright orange hat (University of Tennessee Orange to be exact). While I readily admit that I have a sizable collection of hats, shirts, sweatshirts, and other items that are that particular shade of orange- I would not be caught dead in them on the river.
This guy was flailing away at the water and needless to say he was 100% fishless.
In the park, in most situations, if you cast more than 10 feet you are overdoing it. Also, if you are wearing anything that has a color not common to the surroundings it would be no different if you dressed up like Bozo The Clown or Dame Edna.
Stealth, slow moving, and accuracy are what the freestone requires. Anything else and you are just rolling the dice for a stupid fish. And there are no stupid fish in the park. Up there, stupid means dead and the wild fish I have encountered don't do dead very well.
Here is a good example of how it is done by Ian and Charity Rudder of R&R Fly Fishing.