MT2 may share some responsibility, ultimately it's on the tanner to strategically execute a balanced approach to photo-therapy. Helps when users have access to and mix it up w/ natural UVR, stand up & lay down sunbeds. Rotating and exposing the underarms to a slight degree for small duration while tanning should be enough.
Haha here were I live is freezing ATM so I bearly see outside:/ il do exactly what you said about moving I also notice my face is getting a lot more color to my body. I defiantly see that mt2 is working just taking abit of time