As long as you can sync them, really any two camcorders will work. I was interested in an external trigger which they said they are considering. Some of the wildlife folks are attaching GoPros to animals, but they dont want to trigger them for a few hours until the animal is back in the wild. I think the same thing would be useful for sports. I wonder how they get the cam back off the animal, guess they must have a GPS and have to track them back down again.