My Black Ice is shooting in the 280's FPS I use one pin it's 3 inch high at 10 and 2 3/4 inchs low at 30 yards, so the pin is set dead on at 26 yards. The Archers Advantage says 1 to 32.2 yards for one pin with a 8 inch kill zone. If your wanting just one pin start at about 25 set your pin and than walk up to 10 shoot a arrow and see how high it is and that one at 30 and see how low it is if it's lower at 30 go back and set your pin at 26 are 27 are so depending how low it is. This way one pin is not going to miss a deer from 10 to 30 yards. If your bow has more than say 8 inch difference from 10 to 30 your not going to be able to do this need two pins 20 and a 30 yard pin.