I have to agree with Lobes, sometimes there right near the dinks and wont bite till sunset or after. You have to figure out your particular lake. Ive had no fish days for 5 or 6 hours and moved to deep(20 FT.) water and found big ones right on the bottom. They wouldnt move to shallow water till sunset.? Weird. Also every lake has its own little quirks, espically pressured lakes.
My .02
crappieloo