Over the years I've caught tons of fish on Berkeley power wigglers, but since getting into injecting with Do-it molds, I've caught more fish though the ice using half of their mayfly than anything else... the head end looks like a spider and the big gills hanging shallow just inhale this during early ice, then during the late season I use the back half (turned 90 degrees) to simulate a minnow for deeper fish like bass, crappies, and perch.