If you're writing a piece for the Boston Pops, the balance is towards one end. If you're writing a piece for a chamber music society, then it's towards another point. I won't make a final answer on that. I think it changes with every piece.
“I used to work a lot on food issues and every time somebody predicted that production would be inadequate they got egg on their face a year or two later.”
“By striving to do the impossible, man has always achieved what is possible. Those who have cautiously done no more than they believed possible have never taken a single step forward.”