Look man I don't mean any offense, but I guarantee you a switchback wouldn't have any help with this guy's situation. It wouldn't matter at all to be quite honest, because that deer would have jumped the string just the same. I know a guy who shoots a bowtech allegiance and he's had a deer jump the string shooting 325 fps. So don't try to sell it on here cuz it's not gonna work. You gotta understand that it's just something that happens bowhunting. Sorry to say, $hit happens, you can't do anything about it. I always aim lower third of the lungs to account for string jump. You can't help it , just gotta deal with it.