Better have plenty of batteries! We used to do it, but got away from it, as it was too much extra equipment, and then you had to mess with starting up the second camera, changing batteries to leave it always running, etc, etc. We just make sure and shoot from above and near the hunter as possible and get him in frame with the animal if possible, and then we do a few cutaways of picking up the bow, appling the release, and drawing, etc. This way we get good tight footage on some products that are sponsors, etc. Either way, knock yourself out and have fun doing it!! Give it a try and see what you think, some don't mind doing it, me... 1 camera is all I need.