How ironic that has been chat about hill sprints, I inadvertently had a hill sprint session for the first time ever today - went with the kids for our usual 5k in Heaton this morning and it was an absolute death trap, loads of slush had turned to ice and lots of black ice too. Found that the 2 of the hills had minimal ice so we blitzed them for a good half hour and then had a gentle jog back to the car. Really enjoyed it and it was a nice change, think we will introduce at least one hill session a week now.