As a northern angler that prefers to fish for what I would call trophy bass I felt compelled to offer my opinion on the subject. In my opinion trophy "giant" bass in northern New England are usually pretty well educated. I would call a northern New England bass over 7 lbs a giant. It takes many years for a largemouth bass to attain that weight in the short growing seasons. In ponds with the conditions that are conducive to producing giant bass it still takes 10 years or more to produce a 7 lb plus bass. I have aged many bass for the State of Vermont and aged several bass from Maine in my own time.
7 lbs 6 oz aged at 15 years old
7 lbs 1 oz aged at 11 years old
6 lbs 8 oz aged at 10 years old
7 lbs 13 oz aged at 12 years old
7 lbs 14 oz aged at 11 years old
7 lbs 2 oz aged at 9 years old
9 lbs 1 oz aged at 19+ yeard old. Growth rings became to close to age beyond 19 years old but a strong possibility it was several years over 20 years old.
I don't think that these fish which survived a decade or more did so without becoming conditioned and more difficult to catch. Anyone who takes a cast can catch a 7 lb bass but to do it consistently year after year takes time dedication and perseverance. For sure you can figure out very specific patterns that produce year after year. That is what I try to do every time I go fishing. On a typical year I spend 100-120 days on the water from April to November. I prefer and most often fish from dawn until dark30. It is not easy to catch giant bass in the most northern extremes of its range, or catch giant bass anywhere. There is no doubt in my opinion they are conditioned, more wary, harder to entice then smaller younger bass. In the past 6 years I have caught 26 largemouth larger then 7 lbs including 5 8s and 1 9. Giant bass are harder to catch then smaller bass especially after they have had a decade or more of being educated. If anyone thinks catching 7 lb plus bass (actual 7 lb plus bass, not guessing) in northern New England consistently is easy and those fish aren't harder to catch then I would be more then eager to listen.
Catching giant bass takes a lot of time, dedication, effort, money, being mindful, and a willingness to learn.