I also think Big bag is coming out of Horn Pond this year.
if its the Mill pond im thinking about in Wareham? that could definatly produce a big bag my buddy has caught fish over 8 pounds there and has seen fish close to 10 out in the back hanging around the herring runs that whole water system glen charlie and white island pond and ever then small ones out by the power lines have some big fish in them!! an i agree with sinista on billington sea