Burst Point Revealed in this Backwards Video

https://youtube.com/shorts/RwI0pcSEhyc?feature=share

What part of the balloon, the workhorse of John Powell’s JP Aerospace experiments in the upper regions at the edge of space, is the first to burst? Is it the top or the bottom where the balloon is connected to the tether and the experiment racks below it? I thought it was the nethers of the latex balloon, but this video changed my mind. Yet, does it always happen this way? Maybe JP can tell us. http://www.jpaerospace.com

For a summary of the private sector future in space, and how JP Aerospace helps get us there, see http://www.thespacetrade.com