Extrapolating from our few measured points, you need a 29" LMB to get a 5" wide gape. The literature only has that length fish at 4" gape. Extrapolating the AL LMB growth curves, you'd get a 12-15 year old fish. The FL curve says 15 yo or so. Per literature, LMB have lived that long, but not the norm. Northern states couldn't get one that long on avg.
