I was google’ing around for some of the finer details about USPSA scoring and hit factors and found this video. Steve and Rick discus the basics of scoring and hit factors and move to whether or not it makes sense to make up a shot and some basic rules of thumb for making the decision to go back and it’s effect on your hit factor. Despite the cheesy into and music they do a great job distilling it all down for you. Take a look, it’s worth the time.
Great Video On USPSA Scoring