MKern wrote:
I thought three flies was the max anyway.
In Maryland, you're only allowed two.
However, three is the traditional number for wets: one just under the surface, one in the film, and one bouncing on the surface. (It's how you fished surface rising fish before dry flies.)
W.C. Stewart (of Stewart's Black Spider fame, and author of
The Practical Angler) fished as many ten at a time.
I almost never fish just one fly at a time. Not only do you give the fish a pick, but sometimes a team works better than either fly individually. If you get a chance to nymph where you can see the flies sometime, try a combination of a pink San Juan Worm and a small (18-20) pheasant tail. You'll be amazed at how often a fish will swim several feet to investigate the SJW, decide it's nothing to eat, then see the PT and grab it. Obviously, the SJW by itself wouldn't have taken the fish, since it refused it, and the fish wouldn't have moved to small PT, but together they'll take a lot of fish.
Figuring out which flies work together as team adds a whole new dimension to fly selection. Today, I was fishing a bright yellow soft hackle that I sometimes use during sulfur time, and a drab gray soft hackle, and the team worked pretty well. A nymph and a streamer can be a great combo, too. The fish you're targeting wants to keep the other fish (your streamer) from grabbing food, and will hammer the nymph even it it wasn't previously interested.
Even with dries, I'll often fish a large fly that I can see just above small ant or midge. And why burden yourself with a strike indicator that doesn't have hook in it?
As others have pointed out, however, if you're new to the sport, get your casting down before you attempt multiple flies. They're not that much harder, but they can be frustrating when you're just starting out.