I wont use cured shrimp even if there are no fresh shrimp to be found (in the stores) instead just buy a couple bucks worth of medium size shrimp from your local grocery store fresh is better but the prefrozen ones work fine use small pieces you don't need the whole shrimp on your rig or apiece of sponge with your favorite scent will work fine too sometimes when plunking i don't even use bait or scent spin n glos work pretty well without it

good luck