  In the MSSM, an unfortunate prediction of minimal anomaly mediated
supersymmetry breaking is that the slepton masses squared are negative. This
problem is particularly intractable because of the insensitivity of anomaly
mediation to ultraviolet physics. In this paper we note that tree level
couplings to the conformal compensator in the Kahler potential give 10 TeV as a
natural mass scale for physics beyond the MSSM, and, moreover, that the SUSY
breaking effects from physics at this scale do not generically decouple from
the low-energy spectrum. We consider particular extensions, including the
effects of vector-like matter at 10 TeV, and a specific model in which the
leptons are placed in a triplet of an asymptotically free SU(3). We find that
the features of minimal anomaly mediation are not a robust prediction of the
general framework, and that the problem of negative slepton masses squared can
easily be avoided.
