  Supersymmetric (SUSY) models with heavy sfermions ($m_{\tilde{f}} \sim 10$
TeV) in the first two generations and the third generation sfermion masses
below 1 TeV can solve the SUSY flavor and the CP problems as well as satisfy
naturalness constraints. We study the phenomenology of a string-inspired
scenario and compare it with the minimal supergravity unified model (mSUGRA).
The SUSY trilepton signature at the upgraded Tevatron, the $b\to s\gamma$
branching fraction and the neutralino dark matter relic density in this model
can differ significantly from the mSUGRA model.
