Mixed case on MFS screens

There is no reason why MFS literals cannot be in mixed case.  Try it.  You will be surprised at how much this small change improves a screen's readability.   Your users will see it as a more "modern" look and will sing your praises.

Handling mixed case data is another story, but using mixed case MFS literals is a no-brainer.  (You don't have to tell your users that part).