Donald, I see the CST image just like you describe, but IMO that is not enough to prove the points you have made so far. I don't recall seeing any evidence of your field testing however.
BTW and just for the record guys, this CST image is Sorio's New Vector 4000, and not the Dominator that Donald makes...though they are similar by design.
And to refresh every one's memory...the overall length of the Sirio NV4K is a 3/4 wavelength or about 27' feet, and not like all the other lengths that have been suggested over the years as to the length that works best...from 29' - 31' feet.
Donald again, I see what you see in the CST image, but I disagree with you on what the image is showing us. It is a clever animation at best, but it is not really showing us much information as detailed antenna theory goes for currents on wires. Eznec does the same so they provide the Current Log so we can consider the details, segment by segment. That said however, very few that write about modeling discuss these currents.
I don't deny this is what the CST model shows...I just disagree and say that is not possible with the cone as noted on the S4 design. IMO, the cone is not coaxial. I do wish there were some guru's that would talked about how modeling currents work. Maybe the subject is just too complicated.
Even if you are exactly right, and there are CMC's flowing on the cone...I don't see it possible for a 1/4 length wire to produce a 1/2 wave pattern. You are Bob show me how that might be...and I'll have something to consider.
My Eznec models that show CMC flowing on the mast show the first current pattern below the feed point making a pattern that is 1/4 wave down the mast as note below. So if we had CMC's on the S4 cone, they should produce a pattern that looks similar to the pattern below of a 5/8 wave ground plane model.
I exaggerated the currents a little for better clarity.