In the 2017 Celani et al paper on Occam's razor for the electron, it seems that they start out in section 3 with a simplified infinitely thin ring charge. Perhaps this is because it is a very good approximation of what is actually happening, and it is instructive. But they don't say this.
In section 3.5 they upgrade it to a torus with big radius r_e and small radius r_0. This was solved approximately by Bergman and Wesley 1990. I don't think it works in an exact sense because the outer part of the ring is moving faster than the inner part of the ring.
Is there a favored, exact Zitterbewegung geometry?
In 2010, Richard Wayte solved the classical electron problem (massless, charge moving at c, EM fields having electron mass energy, static charge and static currents to have zero radiation) with general relativity equations. Probably some of you are aware of this one, I've seen a similar picture of it posted recently in the ICCF22 thread juxtaposed with condensed plasmoid pictures.
Are there other solutions or is Wayte's model the gold standard at this point?