How do I keep separate settings for an NGS and PSO2 head?

I updated to an NGS head and created it with the synchs turned off, burned a salon pass.

I go back into the salon and load up an old PSO2 model but it wants me to burn another pass because the sliders have changed for the PSO2 model as well.

I have plenty of passes but...

@Neosiotype any changes you make to your look will apply to both games with the exception of accessories that are unique to the original game

@Riesz no, I'm referring to the accessories that characters wear such as glasses, jewelry, etc.