Originally posted by Butterfly_Wings
But I'd say that's just because in general, people who chose to do more than the minimum units are people who are more focused, and willing to put in more work...therefore, are also the people who are getting high UAIs.
Doing less is a definite advantage I'd say, but of course, if you're organised and willing, 12 units is completely do-able. I guess it's good to have a "spare" subject in case you bomb out on an exam, but if there's a certain subject you really don't like or that you do badly in, then there's really no point hanging on to it.