What a difference!! 01/03/2011Predator Z Shaft 2nd Generation Pool Cue ShaftI was using a Predator 314 2nd generation for the last 2 years. After bringing my game back up to par after a 20 year gap I noticed I was not able to get the accuracy spin and English necessary for more advanced shots. As far as I'm concerned you could use a broomstick for a butt with a Z2 and still have an advantage over someone using a different shaft. Trust me when I say there is nothing else like it out there! Hit 'em; straight.I would recommend this product to a friend.