There are 2 Par 5's in Missouri where with the help of course knowledge 500yd drives are not uncommon....when I played everyday I averaged around 280yds a drive, on 1 of those holes that played 570 yds with the tee box high on a hill, I had a 2nd shot of 50yds to the hole several times thanks to the slope on the R side of the fairway and cart path, never more than a 100 yrds in....
Then there was the "British Open" a year or 2 ago where they were hitting mid irons 300 yrds the fairway was so fast,,,,
I watched a special on Dustin Johnson many years ago when he 1st turned pro, they were at a driving range and while the interviewer was asking questions, Dustin was bouncing 8i shots off the netting at the back of the range....
Just saying!