I haven't targeted them off the pier but I have chased them a hundred times in a boat. Seems like we always get them right past the second bar. Hope that helps.
On 3MB pier, I have seen them catch them up close to the shore as well as the end... it all depends on their mood it seems... You might catch them in the middle today and on the end tomorrow.... least thats been my experience..
There is a huge school of redfish that have stayed at Navarre Pier since this spring. They can usually be found near shore but at least once a day will venture out to the end . You just have to look for the school and drop a live bait in front of them.