We first discovered eddy currents in the steel baskets of the O series. When we auditioned the phase coherent version we heard weirdness, but the phase-correct / time incorrect third order slopes 'erased' the weirdness. We thought it was mechanical / vibrational, but all the epoxy we could pile on the basket didn't help. It turned out to be magneto electrical eddie. Aluminum baskets cured it. Later we tried aluminum voice coil bobbins for their thermal conduction. Eddies were purely electrical, but problematic nonetheless.
This wavelaunch stuff I've been working with lately is a manifestation of the same effects in the realm of surface propagation and boundary layer turbulence. And, of course, the binding posts. Jeff Roland first brought that problem to my attention. They had put huge output posts on their amps seeking better performance and a marketing ploy. They failed sonically.
Yep, same file cabinet.