Q:

i have a martin cheetah and im having trouble sighting it in im useing vital gear 3pin sightings my bottom pin is dead on at 10 20 and 25 yrds the pin is lowered as far as it will go ( so i can only lower my top and center pin so far)and i think even if i lower ther whole sight idont think that will completly fix my problem i cant get my top pin on target cuz it will only lower so far b4 touching the other pins ne if ne one understands what im trying to say plz help