asymmetric_implosion wrote: The ideas are nearly identical during the radial compression…
But I’m thinking that if the axial spin is applied during the DPF’s rundown phase by, say, a helical configuration of the electrodes instead of, and not as efficiently controlled as, FF’s axial coil (an option that has been considered elsewhere) then all that follows after the rundown, the events during the radial compression that you mention, would all happen in the DPF [em]without[/em] benefit of the initial axial field.