Knute-
Ice is thick and clear. Water is clear. I think this has an effect on the bite. When I was out, there was very little to no snow on the ice(mostly zero snow) and i think the fish can see you as you can see the bottom, the ice looks like glass. I drilled 15-20 holes and no bite, not even a flash on the vex. I went in close. out deep and nothing. Let me know how you do...
Wally