It almost funny.
Nobody can truly agree how to blow really big bubbles.
What works for one person will be scorned by another. What I've tried to do is listen the most to people who have had the most success. In the cases where two people say different things, I've tried to list it so you can try both and see what works for you. The world record set by Susan Montgomery Williams was done with more than 3 pieces of gum. I believe that Bubble Yum, the company holding the blow-offs, were afraid of kids choking themselves on large wads of gum or parents complaining about their children always getting their product in their hair and clothes.