Any other LX shooters please reply. I bought my LX used off a guy about 3 months ago. I just had the chance to shoot through a Chrono. I am averaging 264 fps. It is bottomed out and should be pulling 70 lbs. I am shooting 31" Easton FMJ's and 100 grain tips total arrow weight is about 444 grains. I thought with that heavy of an arrow that it would slow it down some but not that much(Is this a normal speed for an LX?) Any others getting similar speeds out of their LX. If not how can I get more speed with out switching arrows. Also, how can I figure my kenitic energy???? Thanks to all who reply. Also is that a good spees for that heavey of an arrow???