We have a number of experimental mixes in development; one that has been designated HTS-X2 has recently been tested by 1canuck2 and he will be adding info and photos to this thread.
HTS-X2 is part of a family of mixes that will run from N9 to ~N7.6. The paints used in these mixes are readily available in many, if not most, areas of the U.S. and Canada. Basically, a N6 gray paint is added to regular Cream&Sugar™ to get darker shades.
HTS-X2 is a N8 reflective screen mix.
Addendum:
This is the mix that will be called Elektra™ N8.