When a buck is an absolute hawg, sure no doubt in the shot...take it. But there exists the potential for one to make an error simply for the fact that a decision to shoot or not to shoot must be made and at that point our human(ness) enters the equation. Ground shrinkage is a very real phenomenon. I' ve been involved in some pretty intense hunting situations that required very quick decisions on whether to shoot or not to shoot. Rattling is a good example...you have a buck crashing through the woods and suddenly entering a shooting lane at 20 yards broadside wired to the gourd and you know he won' t be offering that shot for more than a few moments or so. You scan the rack and are as wired to the gourd as the buck. He looks like a shooter or is he?

Now if a buck is just milling around and I have minutes to judge him then it' s not as much of an issue but when the opportunity is short lived, I think this method will be helpful.