I've been hopeful that "AutoEZ" a complimentary program to EZNEC, has the capability to optimize the Quagi designs. W7EL himself recommends it. I have not taken the time to study it, and I don't know its capabilities. Dan, the author posts her on the Zed. Perhaps we can get some comment from him. ***** AutoEZ Program Information AutoEZ is a Microsoft Excel application developed by Dan Maguire, AC6LA. AutoEZ works in conjunction with EZNEC and allows you to use variables to control diverse aspects of your antenna model. You can then run multiple EZNEC test cases while automatically changing one or more variables between runs, or AutoEZ can automatically optimize your model. AutoEZcan take full advantage of all advanced EZNEC features such as virtual segments, realistic transmission lines with loss, transformers, L networks (which can be combined to form T and Pi networks), and parallel connected loads. A free demo version is available for download which may be used with any of the EZNEC v. 5.0 or 6.0 program types. See the AC6LA website AutoEZ User Guide (opens in a new window) for more information.