You'd need to fix the last bracket, otherwise no respected equation connoisseur will buy it.
I would rather fix the first bracket (after the product), so as to be consistent with the size of the object inside the bracket pair... But, surely, even fixing the last bracket is a step in the right direction, and adds the necessary symmetry to the pair.
You have an eye for detail, Phil_S. I'm impressed.
An issue of the \large vs. \Large thingy?