Sourdough Starter Condom vs. Balloon Experiment

Now my sourdough starter condom vs balloon experiment wasn't that fair but still there is one great thing to learn for making a more open crumb bread. On the left hand side you can see my liquid starter, on the right the south african starter. I wanted to see which one inflates the balloon or condom more. By knowing that we will know which starter overall produces more CO2. Sourdough starters produce CO2, lactic acid and acetic acid. The one that produces more CO2 will produce you a fluffier bread. For people chasing an open crumb this is the way to go. Now the balloon doesn't inflate as much as the condom. It was a little unfair, as the left hand starter had less fuel. I should have used the same amount of flour to begin with. But, you don't see any movement at all in the balloon. That's because it's much harder to inflate a balloon than a condom. This explains why you want to have a very extensible dough to get a fluffier more open crumb. You achieve that by kneading less or using more water. So I'll need to repeat this one more time with equal amounts of flour for each and also a smaller condom that doesn't leak. Recommendations? Or I'll just ask in the pharmacy for very small ones 🤣.