I think the no carbs thing is finally beginning to hit my workouts/runs. I just finished up a 5 mile run that took a lot out of me. I averaged a pace of 9:07/mile. That is a little slow for me, but I was running simply for comfort at the beginning. I did not worry about pace or even look at my watch until I was 4.65 miles into the run.
I do not care how long it took, but find it interesting. Even up until a couple weeks ago, my long runs of 8, 10, 12, 15 miles were all done at faster paces than today's. However, I had glycogen stores back then. Also, I was taking in carbs as I ran to refuel. No carbs, no refueling, no major energy sources. It will benefit me in the long run though. Learning to run depleted is a great way to further your paces, thresholds, and efficiency.
It was also great to be out there as it is sunny and about 65 degrees with no wind. I will hold on to mild weather as long as possible.