Hi folks, just a note to say if you don't receive quick replies to your mails I am not ignoring you! It is the last month of my PhD and I could not be more busy. I have stored them up and am answering as many as I can per day, so please be a little patient with me while this month passes....hopefully it will calm down as I go into write-up status in October and am not spending 10 hours a day in a lab! Also I will have a new number for sessions which I will advertise at the beginning of next month when i will be back to doing 1-2-1's all the time! Hurrah!