If you've read a book about it, you probably already know more than most. Just because you aren't catching fish doesn't mean you are doing it wrong. As Tred says, "Now is the time to change nothing."

I'm guessing I have/read the same book you are speaking of. I think it is just called "Mooching for Salmon" or something like that. Seriously old timer author, with some non-PC writing at times.