So in my experience the LZ is a softer feeling shaft because it has had that mid section thinned out to soften the shaft a smidge. Most who hit that see the ball get in the air with a smidge more spin. I think you see a few pop up in peoples long irons in particular to help get the ball up versus the normal PX. I think if you're an aggressive swinger, the standard PX will suit you best but if you have bit more of an even tempo and are looking for a slightly higher trajectory and spin its a great option. Also as a side note the LZ can come in black and who doesn't love that!