When using rag & sandshrimp I'll run 1/0.
When using corkie & egg's I'll run double #4s with a size 12 corkie.Just remember that if you can not slide the corkie between the point of the hook and the shank you are most likely using to big of a corkie for your hook resulting in less hooked and landed fish.Water conditions will dictate what size corkie to use adjust hook size accordingly.Good luck,
STRIKE ZONE