Location with Largemouth bass

Pre-fished Aquia Creek for an upcoming tournament last night. Tried an area Ive never fished and it paid off. Caught 4 bass over 16 in one spot in about an hour. Was fishing the remnants of an old dock and intentionally hitting the pilings with my spinnerbait. Going back out tonight to try and solidify a pattern and secure some other go-to spots for the tourney. 3/8 oz Booyah Ch/Wh Spinnerbait. 12# Vicious fluorocarbon. Pay no attention to my rain gear/trash bag from work. Haha