From what I understand the dirty gear shit is a myth.
It's the hormonal change that causes the zits. Which I have plenty of, I ran one UGL - The zits popped up. A while later I switched to my previous UGL, I got even more pimples
I upped my Ai and I still get funky ass pimples. I got one like a eye ball on my back, just sprouted out of nowhere.
That's a bit of shit you are on, man. I think it is the high test that causes this. My 1st run I was on 500mg a week and got nothing. I ran the 800mg a week for the first month+ and the pimples just popped up.