Hi their i am not new to this forum, but my pc crashed bought new one with new email address too, used to be know on here as "GOBBLER TRACKS", anyhow i have a new mathews outback and it shoots great. now it is perfectly tuned with a laser centershot and has a drop away rest so i know that their is no fletching contact, when i shoot my fieldtips they are deadnuts, then i have been trying my 100 grain 4 blade muzzy's and they shoot about 4 to 6 inches high, now i think the only problem might be that i am using straight fletching, but i have never liked helical fletch but now with the dropaway rest i am sure i would be fine, but i don't really want to switch to helical if i don't have to what are yous guys opinions. mathews outback 30" draw 65 lbs GT 5575's thanks for your help i could also shoot my nap shockwaves, or my spitfires what do you think?