My pace picked up a little. Not much, but a little. Anyway I was greatly encouraged by an article I read on Lifehacker/Gizmodo encouraging folk to get out running and which said "SLOW DOWN". It put it stronger than that.
Once I have my 5km 1/2 hour thing going like clockwork I'll probably try introducing some fartlek, something that the Reverend Philip Swann once told me about some years ago.