Yeah definitely peck through the ice for good sized walleyes, especially for the amount of effort.
There's a good amount of big fish in Frances and Tiber (I caught 20 this year in three trips over 20", with 4 of those breaking 10 lbs, but they all came out of the boat...think I hit the spawn right), but the couple times a year I used to ice fish both lakes, decent size fish haven't come easily for me. Walking and drilling on ice vs trolling in a boat is the culprit there I suppose.