summer 2008, on StClair. my sons and I put 3 SM in the boat over 5 but nothing else bigger than 3, even though we bagged a ton of fish that day. can't remember #s but we used to clean up on Erie in the fall many years ago. many, many over 4 in a day, fishing sunup to sundown.
I'd have to say 4 or 5 LM over 4, multiple times up here, in several different locations in southern Ontario.