Best Veal for Veal Parmesan

At my restaurant I use Veal Eye of Round for Veal Parm. I use veal Butt Tenderloin for Veal Marsala, Picatta and Saltimbocca.  Should I use the Butt Tenderloin for parmesan.  The Eye of Round seems perhaps to "tough" a cut no matter how much I pound and tenderize.

Thank you.