Re: Dont you just hate it
It would not hurt for you to become more familiar with the entomology of the water system. If you have a better understanding of the buglife, you will have a better idea of what the fish eat.
Go to your local fly shop and ask the shop staff about bugs. Whoever is working there should be able to tell you of the different types and the flies that represent them. The shop guys can narrow down your fly selection for specific times of the year.
When you are on the stream, flip over a few rocks or seine it. You will see the bugs that are in the water. From there you can match bugs what you have in your fly box.