Sky I concur with exception.
I know a father son team that catches Walleye year round like some guys catch panfish.
Your absolutely right when saying its about knowing the pattern. These two guys certainly have the pattern and can be seen fishing, within the area of two football fields, anytime during the year.
The exception, they too notice the difference with the fishing. Catching is a bit leaner so far, this summer.
Now my fishing prediction for the next six months. With the passing of the Solar Eclipse today, I predict I will not be fishing anymore then before the Solar Eclipse.
Must go now, stress from Solar Eclipse Hype continues to be overwhelming and I hear a nap calling my name.