Re: naples fl bait fish
not sure what a pinhead is, we do have pinfish that you can use as bait but preferrably we use menhaden, white bait, green backs. You'll need a bigger net, 8' or 10' I prefer a 1/4" mesh, get proficient at it, throwing on structure takes skill to not hang up a net.
Whether you use shrimp or bait fish, go into Port Royal specifically the first large bay on the northside, those docks and small bays hold alot of tarpon and snook on the docks as does Bayview, fish over by the fuel pump dock, you'll catch alot more than catfish there.