Upyun: You have hit a nerve with me. You and I seem to enjoy the same areas and trout streams. If Mr. Humphreys is not there, you can always reach him through Fly Fisher's fly shop in State College, PA. (814.234.4189) for private/group lessons.
Of the list of North Central Pennsylvania streams; Fishing Creek - Penns Creek - Spring Creek - Pine Creek - Young Woman's Creek - Kettle Creek - Slate Run - Cedar Run, there is one that is my all time favourite stream in the US. Can you guess?
Sometime this summer I will be taking a weeks holiday and traveling to all the streams listed above myself. Might just bump into each other some morning.