Originally Posted by corners
Sorry to hear that. How was string movement? I ask because, as I mention above, when the mains slide and snapback dwell time is increased and anytime you lengthen dwell time shock is decreased. I think this is the reason why gut/poly is so comfortable - the elastic gut slides and snaps back giving very long dwell time - kind of like the gut mains catch the ball and then throw it back out. If the ZX is "moving" or getting stuck out of line this would suggest that it's not snapping back and you'd lose that extra dwell time.
I don't think you can buy the RSI stiffness numbers on this one. The Dynamite is fairly stiff or firm even at 50 pounds in my Exo Tours.