I think you should keep the testosterone. Why drop it?

Proviron is a good anti-e, I like it. (I do 50mg ED.) I still keep Nolvadex on hand just in case. You should always have some on-hand IMO, it's the best insurance against gyno. If you do Proviron or Arimidex, your dosage might be to low or you miss a dose or three and gyno symptoms crop up, you can treat the symptoms with Nolvadex.