Hi Eckard.
Phase shift was a misleading term, sorry, to keep it symmetrical just think of simply Doppler frequancy shift. The symmetry is; As mass moves it builds up a 'photoelectron' cloud of thickness and density proportional to velocity (wrt the surrounding local field). Symmetrical with (or actually "equivalent to") this is the degree of doppler shift required, also increasing with relative velocity. The third and perfect symmetry with this is that the oscillation rate of the photoectrons also increases in the same way, just like modulation for FM radio (done by single crystal oscillators).
By 'mass' I'm talking everything, from a single Proton, through humans, spacecraft, planets, solar systems etc to galactic clusters, (see Cl 0024+17).
It's termed the Discrete Field Model, it's completely falsifiable, and all I claim is that I haven't been able to yet. It follows the SR postulates but not the wrong assumption about there being no 3rd frame (field). AE said there are many fields in relative motion ('52). If only someone was listening!
Probably too late now as Popper also wasn't listened to and ruling paradigms along with the arXiv lock and 'Nature' are prematurely sealing our fate!
Couldn't open the Gompf link, but I can explain why it's flawed. Imagine a large cluster moving right to left across Hubbles lens, a local group moving the same way within it, M87 moving the same way within that, then the jet doing another 0.98c. That's exactly what we keep seeing, not just that one, there were dozens by the 1960's. But they seemed to breach postulate 2. They don't. Light will do 'c' through all local fields. The evidence is now a bit overwhelming and updated every day. It solves lots of astronomical anomolies, (working on them now). May post again soon on viXra, or perhaps the 'Skeptic Adversaria'.
Example? Too much choice!; Check out how fast the solar polarity shift wave passed Voyager 1 before (13 days) and after the termination shock (100+).
Thanks for your interest. Are you No4 to see this or still a bit confused? (don't think about the implications too much without warming up your brain!!)