This was posted by JoeW
01-29-2011, 05:23 AM
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I am a proponent of the Predator Z2, If you run your own tests I think the answers are self evident.
Place two balls on the foot rail 2.5 inches apart and centered on a diamond.
Place the cue ball on the same diamond line at the other end of the table.
Warm up by shooting center ball and hitting the foot rail without hitting either object ball.
I compared the two shafts on my $2,500.00 cue stick with ivory ferrules with a long Predator Z2.
My bias at the time was to prefer the original shafts because they keep the cue maker’s work in tact.
Use one to one and one half tips of offset on the cue ball and shoot to hit between the two balls on the foot rail without hitting either ball.
Mark the shafts in four position around the circumference of the shaft and shoot three shots from each mark.
Without going into a long winded discussion of each shaft I was a little disappointed to learn that the Predator shaft produced less deflection. The original shafts had more deflection but the amount of deflection varied from two opposing sides of the shafts to the other two opposing sides.
Based on the results I play with only the Predator Z2. I have placed the original shafts in storage for my grandchildren.
I changed shafts based on the results of my research not on any hype from anyone.
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Here is a link to Dr. Dave's where he has the aformentioned Platinum Billiards chart:
http://billiards.colostate.edu/threads/squirt.html#data