Bow mounted range finder??
 

Anyone ever seen or used a bow mounted range finder? I am trying to find one but cant seem to find any that are being distributed anymore. The only one that I can find is this one by bushnell and its states that it is discontinued - http://www.opticsplanet.net/bushnell-yardage-pro-bow-laser-rangefinder-200100.html. Any info yould be appreciated.