the IGFA shows that the largest proven fish was infact 74". the world record hook and line was 65". they did list some questionable fish listed at 96". since the mid 1800's there hasn't been anything over 66" that was proven. over all any fish over 80lbs is on the questionable list. not disagreeing, but just some info to back what we are saying.
i think we will see some more of the monsters soon around here and i have a nessy i am gunning for. i have personally seen on a few different public lakes (witch there names can't be disclosed to to possible deaths) that were 54" taped and i have seen some that were 100% over 60" one was 10" from tip of snout to its eyes. my lure rested on it cause i was dumbfounded by the massive fish i was looking at 1 foot away from me. that is my 47" muskie in the pic and i have had a 53" lake sturgeon before so i am not over judging the fishes lenght. now i just have to catch it so you guys can see it as i know were it lives

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also for the picture. i am 6'5" and pushing 300lbs