I was out on a smaller lake recently and was surprised to find the crappies cruising around only a couple feet below the ice.. The few that were deeper were hardly interested in eating. The ones hugging the ice were eager to eat.
Yea, a couple of weekends ago I ran into the same thing. I could catch them a couple feet below the ice but not on or near the bottom. And they seem'd to come in waves. Two or three would bite and then nothin for 15-20 min.