IIRC the rules governing driver specs have been around since 2005 or so. During that time I recall one male pro golfer(lets be honest this discussion is 100% because of a perceived issue in male pro golf) using a longer than 45" driver. One. Bryson. And he has totally sold out body and technique to hit the ball as far as he can off the tee. Do pros hit it further today than in the past? Sure they do. Did Nicklaus hit it further than Bobby Jones? Undoubtedly. Did he play all the same courses as pros did in the 20's and 30's? No. Things change, players are better athletes, are trained better from an earlier age. Courses became outdated for reasons more than just distance. Outside of those used on pro tours what courses have become unusable by none pros? How many course records have been routinely broken because we all hit it so far? Ours has stood for 20yrs and no one has come close to it since.