Brought the family catfishing in the Atchafalaya river. My usual spot has a 3 - 4 mph current. Threw out my usual 15# fluke anchor and it held easily. Just like it did with my old X60. But then the sway started. The back end of the boat would sway back and forth 8 - 10'. Tried turning the engine - no help. Went back the next day with an extra anchor and secured it to the s/b stern. Still swayed 6' or so. Hard to catch a catfish like that. Any suggestions?