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DB, the different polarity fields are not a left side and right side thing. That's just the way a model displays the phase. I think you know that. It's an inside the cone or outside the cone comparison. The only reason we have a phase shift anywhere is because the vertical element is 3/4 wave. You could remove the cone and the phase difference is still present at the base of the 3/4 wave.

 

It's only because it is wrapped with the cone around it that we get a phase delay without undesired radiation from the 1/4 wave inside the cone. That is what brings the vertical into phase with the cones normal "radial radiation" and any CMC that is present on the cone.

 

I don't suggest that all gain comes from CMC, just that any CMC adds to the gain and is mostly radiated from the cone. Offsetting the resonance of the cone can cause tremendous CMC issues to appear.

 

Lil'Yesusa, please feel free to elaborate on the evidence that led you to believe the CST model is inaccurate more so than any opinion. Hold your thoughts about any manipulation of a model until you can provide anything that contradicts what has already been provided. An "I think" is not appropriate at this point. Something starting with "I found" is required to dispute current models.