Holy moses, I didn't realise I created this so long ago!
In between I've been casually running, nothing more, nothing less. Next year I will complete my first marathon (was rejected from London) and at least two half's (signed up to one already) so more serious training to come.
Anyway, I ran a treadmill PB of 21:04 this lunchtime. It felt hard, but not awful - I was increasing the pace from about 3.5km too, starting at 14 kph ending on 18kph for the final stretch.