I sail a 240 displacing 3600 lbs. in the Potomac/Chessie - bottom is largely mud to sand. I've a #8 Danforth-type anchor that hasn't failed, yet, but can't sleep sticking my head up every half hour to check for drift...Would like an additional anchor but can't get a straight answer on what kind. Kingston Quickset has been suggested. Any suggestions out there?Thanks, Drew