Nice bit about how to write. I hang out at an art studio that hosts 24 Hour Comics challenges (more than just on 24HCBD) and 'write out of order' is one bit of advice that I give to people looking to participate for their first time. Some of them get the idea and others think that the Bridging Scenes are just BS fillers.
And the schedule time makes things a lot easier, and you can work at other times if inspiration hits or your other plans aren't that great.
P.S. I agree with the Eric O'Grady Ant-Man idea. He's the Ant-Man that I give a rat's ass about.