Originally Posted by Rowan

Mine comes from experience. Long distance riders have been doing this for decades.

If your read Brandt's second post in your link, you will see why. Rehydration and refueling go together. He makes the point further down that any fluid that has nutrients in it will take longer to work its way out of the stomach. I've also always said that if you eat on the bike, drink as well.

I stand by what I said.