Cambridge Supplementary Application Questionnaire 2016

Hi

I have just submitted my UCAS form and have begun filling in the SAQ for Cambridge.

I have two questions and it would be great if someone could help answer them!

Firstly, how much effort did you put into the optional personal statement? How long does it have to be and is it a significant part of your application?

Secondly, when asked for the 'unit code' when entering qualifications, does this mean simply entering 'UNIT1' or 'UNIT2' or does it have to be the specific unit code for the course, e.g. '2171' ?

Thanks in advance