Updated information is provided in this addendum to an original report that assessed the equity of the Kansas School District Equalization Act (SDEA) from 1973 to 1988. This consultants' analysis on behalf of Turner School District in "Mock v. State of Kansas" consists of five parts. Following an introduction, section 2 reviews the initial conceptual framing of the original report in the context of the present action. The third section describes the operational framework used to evaluate the SDEA, and section 4 summarizes the results and conclusions of the original analysis. Findings of the addendum are presented in the fifth section, which are effectively identical to those of the first report: the plaintiff district holds less wealth; exerts a higher tax effort; receives less revenue due to the SDEA's definition of educational needs; holds disadvantaged demographics; and educates fewer children on a lower per-pupil budget. Fifteen tables are included. (3 references) (LMI)