out of curiosity, how's about deflection of SW cues? low or high? please enlighten me.
The purpose of the Parabolic Taper designed by David Kersenbrock and used by Southwest and others was designed to increase the power generated when the cue ball is struck. David developed the design by using the principles of how a Parabolic Curve generates power.
I have never tested deflection using a Southwest cue or any cue that uses a Parabolic Taper (Butt Alone), but I would assume that deflection generated would have more to do with the cues shaft. From all I have learned over the years deflection is generated mostly by end mass of the shaft, how much a cues butt effects this I have no idea.
However, Southwest uses solid shafts that are not cored at the ferrule end like Low Deflection shafts.
JIMO