Import Spock into Poser...fiddle with the diffuse color in materials so that he's no longer purple or whatever hue is applied:
Unless you like having the big FG on the forehead, take a trip through any image program for a quick and dirty fix, save, and apply to the head model in Poser material room:
Just to be sure, I exported the new .obj and re-imported, for the results below. Andy insisted that he wanted to wear the head, that Slon gets to have all the fun, yada, yada, so...here's Andy, with the new Spock head, and with M4 Spock hair added :)
So, I guess anybody can wear the new head, not just Genesis :)
M4 BODY AND CLOTHING WITH FACEGEN SPOCK HEAD OCTOBER 17, 2018