Again... noting that polls taken less than 48 hours after a debate rarely pick up the scale of any changes.
Are you sure?
The two biggest debate polling bounces I can remember (2000 & 2012) saw the peak of those bounces happen immediately in the snap polls in the first 48 hours.
After Obama-Romney I, Romney's bounce was highest in the first 48 hours. And by the RCP average measurement (a lagging metric), Romney was all the way back to pre-debate numbers only 1 week later.
My memory is a little foggier on 2000, but I do recall Bush's bounce after the Gore "sigh" debate also showed up in the snap polls immediately. That bounce hung around a little longer, but Bush's best polling numbers in October were the ones done immediately after the debate...I vaguely recall Bush getting his first 50+ poll immediately after that debate.
