Next week I will be using my Inspire to capture some footage over a lake. As a precaution in case of a water crash, to keep my drone from sinking like a stone, I have attached some foam pipe insulation to the arms. Drone floaties as it were. 20" of foam in total. I'm just not sure if this is enough buoyancy for this done, as it's pretty heavy, and I don't really want to dunk my drone to find out. Has any of you tried anything like this, or know of a good way to determine if this amount of foam will keep it from totally sinking? If it turns out it will sink anyway, I'd rather not attach any foam and keep my aerodynamics. Here is a photo of what I've done. I'll use zip ties before I actually fly it. Thanks for any input.