I re-read my iPhone upgrade agreement and also the pages you sent in reply a few days back - and everything I'm reading had a hard/fast "12 payments" minimum. "As a member of the iPhone Upgrade Program, you can get a new iPhone once you’ve made the equivalent of at least 12 payments."
Since we all didn't get the 12's until October 2020, my 12th payment was not scheduled to clear until 9/22 - well past the most likely pre-order date. I was also seeing that Apple would "know" to charge you any remaining balance if you wanted to upgrade early, at the time of your next purchase/pre-order...but I wanted nothing to get in my way to get a launch day phone. Last year's pre-order process was awesome, and when he store opened live, I was already pre-qualified/approved and had the phone reserved. My pre-order was on that Friday morning in two button pushes I think.
So, this time, I didn't want to take any chances. This buildup is awesome and love the forum. Getting stoked!