  The implications of the LEP Higgs bounds on the MSSM stop masses and mixing
are compared in two different regions of the Higgs parameter space. The first
region is the Higgs decoupling limit, in which the bound on the mass of the
lighter Higgs is $m_h \ge 114.4$ GeV, and the second region is near a
non-decoupling limit with $m_h \simeq 93$ GeV, in which the masses of all the
physical Higgs bosons are required to be light. Additional constraints from the
electroweak $S$- and $T$-parameter and the decays $B \to X_s \gamma$ and $B_s
\to \mu^+ \mu^-$, which also constrain the Higgs and/or stop sector, are
considered. In some regions of the MSSM parameter space these additional
constraints are stronger than the LEP Higgs bounds. Implications for the tuning
of electroweak symmetry breaking are also discussed.
