I have just had an email back from the admissions office, extra work would make no difference to your application. However, there were 2,600 applicants for 138 places this year, and they hope to shift them all by the end of Feb. I hope I get in, it is my first choice-but if i don't i will understand why! How many people?!? That is way worse than any of the places i've got into so far-LSE was the worst (500 apps for 42 places). So, that is why they are taking so long!