Have been using PC 2% BHA gel for a few weeks, it really does help with clearing the majority of my closed comedones and combined with BP has been keeping me 95% clear (as long as I don't pick any spots)

Anyway, my question is what should go on first?

Just notice PC website states BHA then BP, however, I have been doing BP and letting it dry for an hour or so and then applying BHA before I go to bed.

In my head this allows the BP to kill the acne bacteria and then the BHA will exfoliate?