BTW in case anyone is wondering Fulton was as much a fundamentalist as I have seen. I lived in the same town and spent some time with him had Bob Fredere, and later with Fred Devere.
To me the stat version was less efficient and harder to set up. The Premiere, which was an evolution of the J modular, seemed easier to drive, had better bass extension, and seemed to image a little better.
Of his full-range speakers, I liked the one he made just before he died suddenly the best. This one used the 'Oval Window' concept, which could play an octave below the cutoff of the woofer drivers, allowing him to use an array of smaller (faster) woofers. I have a recording, Canto General, which I had made in the 1980s; that last speaker played exceptional bass relative to the prior speakers, rendering the bass drum in the recording with great ease. It was also easier to drive. The Oval Window was apparently a modified Helmholtz resonator.
Thank you.