. Mid-cove can be consistent for Hickory shad with a few Americans mixed in. I landed 16 yesterday in 3 hours at Fletcher's Cove Rent a row boat if you can.
If you are fly fishing you definitely need sinking line or at least a sink tip to get down far enough.
Look for where two different currents meet or where there is calm water in the cove. Fish those spots across the current line until you locate the school. Let your fly or lure get down toward the bottom before starting a retrieve. I find a couple fast strips on the fly line or cranks on the reel and a pause work best with a bite coming on the pause fairly often.
I start with chartreuse or pink flies. On sunny days chartreuse seems to work better for me and pink better on cloudy. Red and white work well when the water is clear and it is sunny. Orange or red and yellow for when the water is brown.
If you are spin fishing same principles apply. You can get some shad darts at Fletcher's Boathouse or at Dicks sporting goods or use small metallic spoons. Use a 3-way swivel so you can fish 2 darts, possibly in different colors to identify what the shad are keying on more.
Good luck!