Did you ever think that by having a discussion about the inner workings of where your opinions come from, that you might find that some of those opinions were not correct.. and heaven forbid, learn something?
A simple one, that you seem to have latched on to real strong (based on the number of times you repeat it on your web site) is that the ball must reach its maximum rev rate ( you mistakenly call it the moment of inertia) before it starts to hook.
It's just flat out wrong.
When it reaches its maximum rev rate it begins to roll.
It's the point where the ball to lane friction changes from kinetic (sliding) to static (rolling)
Kinetic friction (sliding) makes the ball rev up (under the assumption the surface speed of the ball is lower than the forward speed of the center of the ball).
And any friction not in line with the path of the ball, will cause it to change direction (i.e. hook)
As for ringing 10 vs flat 10.
I was watching on Youtube the 1984 Angle Open, and Marshal Holman left a ringing 10 at 1:50
Later Nelson Burton Jr left a flat 10 at 3:06
Neither of these shots could possibly be considered coming in "behind the pocket"
Maybe the modern bowler has drastically increased the area which they consider to be the pocket since so many light shots carry because pins fly off the side boards.
Bookmarks