Today I decided to check out the c25k+ podcasts and went with the first one that does cadence and form training. It was great - i felt it really helped as I have really struggled with pace the last few runs.
I think it was probably a mistake to try to get a little faster to cover more distance in the 30 mins. It just took the enjoyment out and I was back to gritted teeth and never felt like I found my 'happy pace' that I had during the c25k programme.
So this run was a massive improvement and I think I'll stick with the podcasts for a bit. Not sure where my 'happy pace' has gone but I'm sure I'll find it again when I stop giving myself targets....