Ok found a way adding Vascularity with a pz2 or a Mc6 file in new layers to the dolls, this system has to be applied before using your dolls textures and will stay on them even if you decide loading an other texture the Vascularity Layer will remain stable. I will now try building the 3 styles for V4 and if you have the original Vascularity for V4 M4 it will be ready to go using it in P13 with a Pz2 Injection :) So hope I get these 3 styles right now.