  There is a discrepancy between light-front and equal-time values for the
critical coupling of two-dimensional $\phi^4$ theory. A proposed resolution is
to take into account the difference between mass renormalizations in the two
quantizations. This distinction was first discussed by M. Burkardt. It prevents
direct comparison of bare parameters; however, a method proposed here allows
calculation of the difference and thereby resolves the discrepancy. We also
consider the consequences of allowing a sector-dependent constituent mass.
