3d, while shooting it today the shock stop broke on me, but buckmaster included a regular slide in the package, as soon as I installed the regulad slide my string noise dropped a lot and the arrow seemed faster, I finally got it paper tuned all the way out to 25yards and it is bullet holes at 6feet to 25yards. While at rest the arrow is tail low at the string but it flys great. I must of shot it about 300times since fri and the string has not stretched yet

evan