What Rod Cross was studying in the OP.
VII Conclusion
....The experimental data shows that elasticity of the cue tip plays a dominant role in the collision process and suggests that cues with thin shafts might generate lower squirt angles as a result of their greater flexibility rather than their lower mass...
http://www.physics.usyd.edu.au/~cros.... squirt.pdf
Dave's link:
Without going into details, it is worth noting that the interaction of the cue and the cue ball is not limited to their deformation only at the point of contact, but is also related to the distribution of longitudinal waves of compression and relief in them. It is the transmission of these waves that defines the time of contact between the cue and the cue ball as well as the fraction of energy transferred from the cue to the cue ball. In addition, the longitudinal load of the cue contributes to its loss of stability and lateral deformation and, consequently, to the generation of transverse oscillations which also absorb energy transmitted to the cue ball. We should not forget that any lateral deformation of the cue during the stroke can lead to significant deviations of the cue ball from its intended trajectory. All these factors suggest that in describing the mechanics of the cue, we need to considered its wave properties in addition to its geometry and weight characteristics.
http://dbkcues.ru/articles-2/investigation-in-some-wave-properties-of-a-billiards-cue/?lang=en
Thanks all,
Be well
VII Conclusion
....The experimental data shows that elasticity of the cue tip plays a dominant role in the collision process and suggests that cues with thin shafts might generate lower squirt angles as a result of their greater flexibility rather than their lower mass...
http://www.physics.usyd.edu.au/~cros.... squirt.pdf
Dave's link:
Without going into details, it is worth noting that the interaction of the cue and the cue ball is not limited to their deformation only at the point of contact, but is also related to the distribution of longitudinal waves of compression and relief in them. It is the transmission of these waves that defines the time of contact between the cue and the cue ball as well as the fraction of energy transferred from the cue to the cue ball. In addition, the longitudinal load of the cue contributes to its loss of stability and lateral deformation and, consequently, to the generation of transverse oscillations which also absorb energy transmitted to the cue ball. We should not forget that any lateral deformation of the cue during the stroke can lead to significant deviations of the cue ball from its intended trajectory. All these factors suggest that in describing the mechanics of the cue, we need to considered its wave properties in addition to its geometry and weight characteristics.
http://dbkcues.ru/articles-2/investigation-in-some-wave-properties-of-a-billiards-cue/?lang=en
Thanks all,
Be well