Last year I shot Nap 100 grain broadheads with cheap Carbon Arrows...they shot great.....I wanted to upgrade my arrow so I went with Maxima Hunters.....same Broadheads.....I cannot get them to fly correctly....can you help....how do you tune a broadhead? And what does that mean? I understand they will not shoot the same as field points...but 1 shoots left, the next is high and right, the next is low...? I'm confused.