That kind of oe you can control very easily with the highlight slider in lightroom
Those kinds of stage shots look sublime with some dof but the only way to do that really is to be up closer to the action, I find dof makes the stage characters pop out!
Last night I did some lens micro adjustment adjustment tests, turns out the Sigma 50 1.4 is perfect at 0, my sample is a good sample! The 17-40L however required -5 on the W scale to be as sharp. Adjustments saved, mind at rest
Edit*
And another!