I usually just carried a sharp knife with me and a pair of latex gloves. Latex gloves mainly because I bite my nails in the stand once in a while and like to have a little protection. Ive always liked to open up the pelvis and sternum to cool off the deer a little quicker. I usually saw through the pelvic bone but I might give that new "Butt out" tool a shot this year. Looked at the demo on youtube and looked pretty easy. Better than cutting out the, um, the butt hole (I hope that doesn't get sensored) in the field. Then I can just open up the pelvic bone later on with a saw with fear of cutting the bladder. I think every person has there way of doing it, I guess whatever way you are used to and are best at it the best way.