I shoot a Mathews Q2, 29" (should be 30, i shoot with a bent arm bought it used) 70 lbs. with a 400 grain arrow, wraps, blazer 2" and 100 grain tip, i am shooting 260 FPS, i can cut about 2 inches off of my arrow and i think that should get me to 270. my pin gap at 20 and 30 is realll close, then a decent leap from 30-40. 40 and 50 are close., but if i shoot the 60 yard target with my 50 pin, i am about 2 feet low. is this drastic drop normal?

what do you guys think is a good hunting speed? a buddy shoots a LX at 290 and his 20 and 30 pin is the same pin and he hits with in 1/4" from 20-30 where as i hit about 3" high at 20 with my 30 pin.
thanks!