Went out in the rain to do the final run of week 3. Found the first 2 intervals quite tough and then kind of got into it! Finished the final run and then had a bit of a walk to get back to the car. So, I thought just see if you can run to the next song that comes up. It was Back in Black AC/DC, awesome to run to! I recommend it! Surprised myself, but hope it doesn't mess the plan up if you do add on bits like that? Fun though!