[dkerby]

In the picture of Tiger, counting from the right, the 6th
red line for the clubshaft seems to be length wise for
for Longitudinal Acceleration using a rope handle
technique. I would think that the blue line from red
line 6 to redline 7 would be straight rather that curved. Your curved line appears to suggest radial acceleration. Red line 6 is length wise down
to approx hip level. Would this be the point where
pulley starts?

Do you buy Homers concept of Longitudinal Acceleration
vs radial acceleration?