Large-N universality of variant actions

Corrections to large-N universality in mixed action lattice gauge theories imply constraints on the cut-off dependence. We state the form of these constraints and show that they are satisfied up to and including two loops (weak coupling). This implies that the second coefficient of the β function on the lattice is indeed universal as expected. We then evaluate the complete form of the corrections to large-N universality up to and including two loops. They give a sizeable contribution and determine qualitative aspects of equal string tension data like the bending seen for SU(2).