Last spring a guy my Dad was guiding rented my Exomax crossbow to shoot a turkey. I had grapplers on behind wasp sst mech broadheads. The arrow blew right through the turkey and the grappler slid up the shaft(leaving scratches on the graphite all the way) stripped two of the vanes off and the third was beyond repair. That mangled vane would probably have occured anyway with a pass through.