My Liberty is set around 65#. I'm shooting PSE Extreme 300s with 100 gr Magnus two blade Stingers. I may try the four blades before season. Total weight with 4" vanes is 380 gr. These shoot very well, and fly like darts. The field points and broadheads hit the same spot, also. I have a Copper John Pro II sight, and love it (.029 pins).