Subject: File No. 4-500
From: Thomas C. Edwards, Ph.D., President/Chief technical Officer
Affiliation: DynEco Corporation


564 International Place • Rockledge Fl 32955 • 321/639-0333 •

High Performance Air and Vacuum Delivery Systems

May 27, 2005

Jonathan G. Katz, Secretary
Securities Exchange Commission
450 Fifth Street, N.W.
Washington, D.C. 20549

Dear Mr. Jonathan G. Katz, Secretary:

It is imperative that SEC File No. 4-500 Request for Rulemaking Regarding Member Records of “Short” Positions and Reporting and Public Dissemination of Aggregate Positions by Security be approved to insure that companies and shareholders are protected from stock manipulation and illegal short sellers. Pink Sheet and OTCBB companies deserve the same protection afforded to NASDAQ and Exchange members. This means that NASD Rule 3360 needs to be changed immediately.


Thomas C. Edwards, Ph.D.
President/Chief technical Officer


Barbara Z. Sweeney, Senior V.P.
Corporate Secretary, NASD