Well Bussard has an approach which may work, but it may more likely be burdened with a fundamental design error - in not fully capitalizing on "spherical convergence" - since it or was closer to cubical.
IMHO proper spherical convergence needs at least 12 converging vectors at a minimum, or twice as many as he provides. I got the feeling he was unaware of the advantages of geometry. Maybe the latest edition has proper convergence by now. I stopped following the site a few years ago when he failed once again to live up to promises. From: James Bowery No, I mean that if you are interested in magnetic enhanced electrostatic confinement, there is no need to speculate. Do you mean the post was too short :-) After all, I wanted to leave something for others, so the stage is yours. From: James Bowery Why no mention of the WB series?

