Painius, reposting one of the VS'ers, thus-

I don't understand the question...
Consider the windmill sail. What tells
one "bit" of wind to hit the sail structure,
and another "bit" to keep on moving
through the sail?

You're wastin' yer time and breath on this dude. He is not one whit
interested in *understanding* the FS model, only in endlessly nitpicking
DMP. If he were interested in understanding it, he need go no further
than right here - http://www.river.org/~jerry/grav1.htm

Jerry Shifman is one of those several people mentioned many times, who
have independantly deduced the *same* FS model. Shifman gives the most
'layman friendly' and concise rendition, as well as explaining
gravity-acceleration equivalence, plus explaining inertia and
conservation of momentum.
The only caveat, as said before, he uses the archaic 'E'
word for the spatial medium. Plus, he speculatively sees the
pressurization of space as "running down" and associates it with the
redshift. These peripheral issues aside, he perfectly elucidates the
rudimentary `core mechanism` of Flowing-Space Gravity.

However, your respondant has no objective interest in
this stuff. As an inveterate VS'er and stalwart Defender of the Faith,
his interest is solely in debunking all heresies. :-)