Graham,
Great 400s, certainly looking good to improve your 5k time. As you are focused on the 5k I would strongly recommend ladders of one form or other. 400, 800, 1200, 800, 400. I have found that the pace changes are good at getting your body to adapt to faster paces.
5k steady for me yesterday. My right foot is now pain free which is very encouraging as that is the AT that has bothered me for a couple of years. My left is still reacting but progress.
Taking today as a rest as I have a low key 5k race tomorrow. It is along the border between Canada and the US that is along the St Lawrence Seaway, so it should be fun.
I have just dropped MrsMickC at the station as she is off to Toronto to meet up with daughter #2. They are off to Paris for the week, shopping and site seeing as part of daughter's birthday celebrations.
Mick
Edited: 07/09/2012 at 18:28