If your practiced up with your field points and are confident you can make a lethal shot on a deer, and don't know that much about tuning or don't have the time. Go with expand ables, they fly true and do a number on critters. You need to practice with what ever broad head your going to shoot. Buy a six pack and keep half of them new for hunting and practice with the rest.
For everything you need to know about tuning go to
www.eastonarchery.com and download their tuning guide!