I haven't caught any big blues but I have taken my kids out on the river channel drops on Barkley with shad we caught in a cast net and we have landed many good-sized blues. Using 3/4 or 1 oz egg sinkers we just drop the shad straight on the drop and we usually catch them around 20 - 25 feet deep. The drops I gravitate to are the mouth of creek channels entering the main lake. I just use my trolling motor to hold but if it is windy you can forget that idea. Doing this we have caught blues up to 12 lbs and they average 4 or 5. It can be a blast with kids because you can catch just about anything with threadfin shad on the drops. Maybe going deeper you can catch the bigger ones. ???

kc