What's the effect of cutting an X10/ACE from the rear/How come there's no chart to tell us the effect/Why doesn't Easton recommend cutting these shafts from the back? Cutting X10 (or, to a somewhat lower degree, the ACE) shafts from the rear of the shaft results in an effectively stiffer arrow reaction, one that is disproportionate to cutting the same amount from the front of the shaft.