Just for the record, I did 12 miles on Saturday. My knee was fine thankfully but I did struggle a bit with energy and enthusiasm. I started up the canal in blazing autumn sunshine, and with no shade I was drained fairly quickly. I forgot how much direct sun wears me out. I eventually got into the shade of the Phoenix Park wall and I felt a bit better. Anyway I did it, which is the main thing. A few short runs this week will keep me ticking over during the taper.