i think the average size walleye depends on where you fish on the fox. i have seen a hundred reports of people catching huge numbers of 8-12"walleyes in a trip, with the biggest usually around 14". thats usually in yorkville i think. i have only caught 2 this year around that size. the average walleye i get is probably 16", with plenty of 20"ers and better i always seem to loose at my feet. i dont get the numbers of walleyes, but the ones you catch are usually real nice. i usually fish between st charles and upper batavia for walleyes. usally a split shot and a minnow in large deeper eddys, or under spillways can be good spots. the 2 biggest walleyes i caught last year were caught on large creek chubs. i know of several people that eat walleyes out of the fox. half say they taste like mud, and the other half say they are tasty.