Float Rigging for Sheepshead

I have never seen anyone do this but today me and Paul were catching sheepshead using fiddler crabs on a float rig. We had a hard first 5 hours and at Cumberland Island were running out of shrimp. We had caught 3 or 4 sheepshead with split shots and j hooks but there were few bites. Then we started float rigging them in fast current when the tides started going out and we were getting bites every cast.