I cover three issues in SUSY phenomenology that Dimitri
pioneered: superparticle cascade decays, neutralino dark matter
and naturalness in SUSY models.
This talk is meant as a thank-you for the role and influence that Dimitri played in advancing my physics career. (In particular, the MSSSM papers we produced earned me my faculty position at Baylor University.) After briefly summarizing our MSSSM papers (and the NAHE class of free fermionic heterotic models upon which it was constructed), I briefly review some of the free fermionic NAHE-based...