My guest this week is Sarah Foster [54:15], executive director of The American Museum of Fly Fishing, on why she thinks learning about the history and traditions surrounding fly fishing are important and add to our enjoyment.  She talks about recent exhibits and acquisitions, and what is in store for the future of the museum.  It's a must-see for anyone visiting southern Vermont.   In the Fly Box this week, we have some especially interesting questions and tips from listeners, including: Why do I keep getting strikes on nymphs while stripping them upstream like a streamer? Is the throat of a pool a common place to find trout feeding? At what temperature does a brown trout start to actively feed? When I see a pod of rising trout, why can I only fool one fish even though the other ones continue to feed? How do older Orvis bamboo fly rods compare to contemporary models? I found eggs in holdover brown trout in the spring.  Were these fish that never found a mate? I have trouble with rabbit's foot hair coming loose on my flies.  How do I secure it better? If you only had one line for striped bass from shore, what line would you choose? How much time before the incoming or outgoing tide should I fish for striped bass? Can you explain exactly what a shock tippet is? What is your "last fly" during the evening hatch when it gets tough to see? Do polarized sunglasses lose their effectiveness over time? A listener gives a tip for an easier way to tie a surgeon's knot A listener gives a caution about fishing below sewage treatment plants after a major flood event My 70-denier thread keeps breaking.  What could be the problem? What feathers from a chicken are useful in fly tying? I fish a 6-weight rod and want a different rod for smaller streams.  What should I pick? I always use a wading staff.  Is the metal tip on the staff an alarm clock for trout, and have you ever put on a rubber tip to prevent this?