I put the appropriate settings in the Master setup of Ty2 and that's it, but I do play at home so can't contribute to what should normally be done for outside broadcasts
Except I do tend to agree with Donny.

One thing I do which might be of interest though is that as part of extensive editing of the Ty2 piano to make it sound and handle better to my taste, I make it brightness adjustable. In the Tyros voice editor you can assign a voice filter and compensating volume to the mod wheel.
So I can start off with a bright piano, at zero mod. wheel, going to "too mellow" at the mod.full-on end, and somewhere in between is the right balance for the piece being played.

Maybe a similar principle could be useful as a quick way of helping to compensate for different piano brightness needs in various locations?

John