I shoot a 70 # Hoyt Razortec, 29" Draw with Terminator Hunter arrows that weigh a total of 509 grains. This gets me 265 fps and 79 ft-lbs KE. I've found I can shoot one pin from zero to 30 yards. I sight in at 25 yards. At 15 yards, I'm about an inch high. At 30 yards I'm about 2 inches low. For hunting situations this is fine.I rarely shootpast 25 yardsat a deer. If I do I just hold a 2 inches high.

I used to shoot CX 300 arrows (394 grains total) out of the same bow. The lighter arrow didn't get me any flatter trajectory. In fact, I actually got a flatter trajectory with the HEAVIER arrow - go figure. Maybe the heavier arrow holds its speed better at longer distances since it is affected less by wind resistance. I don't know. The heavier setup gets me a good trajectory and a ton of knock down power. Plus my bow is ALOT quieter with the heavier setup. I'm ditching my light carbon arrows....

You should download the Pinwheel Software for Archers. You can get a free one week trial from their website. You can model any bow, any setup, any arrow etc.to see your trajectory, speed, KE, and all that other stuff. www.pinwheelsoftware.com