I have had the most frustrating last four days, 4 Nozzle jams! 4 of them! Arrrghhh! and I have finally worked out what was causing it, it was not the hot-end or the electronics. I'm too annoyed to write it up now, but I'll do a post tomorrow with an update.
Oh and before all the nozzle jams I did manage an easier to print Pikachu for #30DoC day 14. I should be back on form tomorrow, lots of Ideas, little time.