Well, the first day on the new schedule went well. It was pretty difficult to wake up from the core though. In fact, it took well over an hour before I really woke up completely. During that hour I went for a mile walk, had a hot and cold shower, and ate breakfast. I was still feeling groggy after all that...
Once the grogginess wore off I felt pretty good. All of the naps were a lock and every one felt really refreshing. On two of the naps though, I slept the entire 20 minutes, which made waking up from the nap a little more difficult than usual. Most of the time I would wake up several minutes before the alarm.
Considering that the oversleeps that led to the schedule change weren't but a few hours each and that there were only two, I should be feeling beat if this schedule wasn't already meeting my sleep needs. I might be surprised, but I don't think it will get any more difficult than this and should get progressively better as I get used to waking from the core sleep. Other than the groggy period after the core this morning I've felt about 9/10 all day.
I started out intending to do the core sleep at 11pm, but Alex pointed out that there would be much less chance of a social conflict if we did it at 3am so we are moving it to that slot, starting tonight. It will be interesting to see what the next few days brings in terms of adaptation. If I can just get the post core wakeup time down to something reasonable I would be pretty happy with how this feels already.