Subcision + Infini RF + PRP ... In which order?

Hello Doctors, I just met with a dermatologist for my acne scarring, after searching for a doctor I felt comfortable with. After seeing Dr. Davin Lim's #PRPmask combined with Infini, I felt that it's the appropriate treatment for my scarring. The dermatologist suggested subcision using a cannula; and I know cannula isn't the best tool, but would it still be effective? My scarring is only on my cheeks. Also, at which order should the subcision be done? All 3 procedures planned in one session.