Bought a new bow for the upcoming season (06 Bowtech Tomcat). I've been practicing in the back yard. It's set at 63lbs and 29" draw with speed mods. My old arrows are Beman ICS 400 cut to 28". I decided to purchase new shafts and started checking out differeent companies. Depending on which brand you buy, and which arrow selection chart you read, for my setup I need between 7.9gpi and 10.5gpi. Is there some special formula that I've missed? I've been leaning torward Carboon Express, either Maximas or Termininator Select or possibly CX Edge. Maxima calls for 350 @8.2gpi and the select calls for 60-75 at 10.7gpi, and the edge 10.3gpi. Any help would be appreciated. My Bemans are 8.4gpi. All I want to do is shoot the best possible setup for my bow. I've never lost a deer and don't tend to start now.