Had to stop repeating week 9. I was getting bored with it and to be honest if I had to listen to "Me and Julie, Me and Julie" one more time I was likely to go completely nuts.
So I tried the Stepping Stone podcast. First time I've consciously followed the beat. I normally alter speed by lengthening or shortening my stride. I found 150 bpm really hard to follow. After 15 minutes or so I realised I was hitting the beat with my left foot strike. End result, I now have a sore left shin and aching right calf. (Which is an improvement on both aching on both legs I suppose.) I shall stick with it for a while. I'm sure practice will make it easier
Anyway, upshot is that my overall average pace was well down. Working on the advice elsewhere on this forum not to increase by more than 10% per week I ran for an extra 4 minutes. (One for luck).
It's another lovely sunshine day and Garmin Connect gave me a trophy for furthest distance run so far. And no more 'Me and Julie'.