My 2 cents:
SD flips hard on medium-light.
GN flips unmercifully hard on medium-light and medium oil.
SD is pearl resin
GN is particle pearl.
What I have seen of the GN has prompted to stop my quest for an SD and stockpile at least one GN for when I find an oil pattern conducive to its POWER.
The GN seems to hit CONSIDERABLY harder than my SD ever did and it hit nicely hard. In fact, the GN hits state-of-the-art hard.