I have the Gopro white that weighs about 76 grams bare with battery. I, so far have used it on my P1 with the plastic mount that comes with the Phantom. That's fine for good weather and no chance of dropping in water. I have the waterproof case and 3 backs. Do most of you use the Gopro in the case or a simple holder? The case weighs a tad more than the camera. The videos I have done so far have been in dry conditions. We have snow now and I don't think getting a bare Gopro wet would be good. Thoughts.