I am getting ready to get back into coyote hunting in a few weeks,I want to be prepared to take 500+ yds.I know coyotes don't sit in one spot long,so I will have to range it and get prepared fast.I was thinking of writing the drop on one of my hands with a marker,and the windage on another for quick easy access.I also thought of writing it on a piece of paper and taping it to my stock.I figure I will write down the information before I go out from a software program on my PC,based on the bullet I will be using and the weather conditions for that day.Any input would be appreciated.