ok thanks Remydrh, just curious. i think it will work better for me to use the individual radii and save the scale conversion for later

i am enabling the sss2’s ‘output sss only’ atter and using the mib_color_mix to add a mia_materal_x (non-diffuse reflection stuff) to the sss2 result. that gives me the ability to use a ‘remap value’ to control the mia_mat/ss2 blend and leaves open the ‘additional color’ for the mia_light_surface. seems to be working, but is there anything i should watch out for when doing it this way?

thanks
ron