Dynamic vs Static VTF on a SME V. Can someone explain the differences in sound?

I've been playing a bit with the percent of dynamic vs static VTF on my SME V. As noted in other posts, a mostly static VTF seems to be a bit faster, more transparent, but also leaner, flatter and less rich. A mostly dynamic goes in the other direction, richer, more textural, more bass, but somewhat less transparent and a bit slower. Now these differences are with using the exact same VTF measured with a good digital tonearm scale. Can someone explain the differences in sonics between the two? I would guess it must have something to do with physics.....as does everything......  :)

I have found that a combination of the two , in my system, gives me the best results, but as I said, I am curious as to why.