I downloaded the Stepping-Stones podcast and thought I'd give it a try this morning. Hmm! I couldn't manage to get my pace down to 150, even when I was doing the 5 minute warm up walk.
I stuck with it though and thought it might be easier when she upped it to 155 but I was still out of step. The 160 pace for the last 5 minutes was as near as I could get it but I was still faster.
I have never thought that I was running fast (I know I take short strides).
All in all it was a good run but I'm not sure that I will try it again as I've been happy with my pace up to now and don't know what benefit I would get from running slower.