Sorry to intrude, but how do diploma subjects interact with breadths? If I wanted to finish my course in regular time, do the diploma subjects replace the breadths + a bit of overloading, or would i still be able to do some breadths if i wanted to complete my course with a diploma in regular time?
It is true that your diploma can be entirely breadth.
There are logistical problems. The max breadth allowed is not quite enough for a diploma. Therefore, unless you overload, you will have to go overtime by about a semester.
Some of your breadth subjects can be cross credited to your degree. Classic example is Maths Breadth which can lead to a Maths Diploma but can also be partially used as credits to satisfy the quant requirement of a Commerec degree. Unfortunately this does not open up more spots for breadth, it simply means that you create more spots for Commerce electives.
That's how I understand things, anyway