Well really there is no average. It varies from lake to lake....state to state.....water levels......whether the spillways are running or not. Weather fronts....time of year....and water temp. Right now is the spawn period here.....the fish I am catching now are squirting eggs some when I take them off the hook. They should all be in very shallow ater now laying eggs.....they are a little late this year do to conditions. They will be in shallow laying eggs in in just a few days I think. For the past few weeks some fish are being caught shallow in 5 fow and some are still in 10 to 15 fow. The feeding depthat that you referred to depends on the depths the shad are running. It would be very hard to just determine a average feeding depth. I check it out eack time I go buy makeing a scouting run at 4 mph useing my electronics......side imagineing is the way to go. When I find them I note the depth they are suspended at and try to place my baits slightly above them. They will come up a couple of feet to get a bait but they will not go down