I Have briefly tried using uncooked shrimp ( grocerystore, frozzen with shell still on) for fishing in the Holland R.
I did not get much action- judt some mudcats if I recall. I didnt try anything fancy- just hung it on a jug head. I dont think the shrimp heads were on, so using a full "head On" shrimp and presenting it more naturally would propobly be the way to go for Bass.
I also used shrimp for shore casting in the Gulf of Mexico near Ft. Myers Florida. Much better results naturally.
The closest looking bait swiming in my area is crayfish. Maybe I wil give it a more dedicated try next summer.
Joe