With the bowhunt up on us, if you haven't been shooting BH's already you are a little behind the "8 ball". Mangus is a great BH, that tunes, and sharpens easily. The Stingers are sharp out of the package, they are also expensive, and if you practice with them before hunting they could be cost prohibitive. The regular Magnus 2 blade is a great head that sharpens easily, flys well, and has harvested a lot of game. If you are hunting any time soon this is the head that I would suggest for this hunting season.
If you want to experiment, wait till the off season.
Now go hunt something!