I have an Outback set at 31" and 70lbs. I'm shooting carbon force 400's and was wondering what grain muzzy or other broadhead I should. Guy at proshop said 100 grain but I just wanted to get few opinions. Also, I've been thinkin about gettin some arrows fletched by the shop and was wondering what or how I should have them done?Helical or? I'm new to this and have heard helical is the way to go. The shop sold me some carbonforces just to get my feet wet so I could shoot a lil. Now I'm lookin to buy my arrows Ill hunt with. Thanks for any and all replys and goods luck. Paul