In TRT context we know that anastrozole normal responders need 1mg anastrozole for every 100mg T ester. It is a competitive drug that needs to match serum T levels. So the answer depends on your gear. Linearity may break down, so perhaps 5mg/week max.
For your cycle, you can try 4-5 mg per week.
0.25mg EOD is not going to work unless you are an anastrozole over-responder.
hCG is needed to keep your testes functional so PCT is a transition and not recovery+transition. Start at 250iu SC EOD as soon as possible.
You BB guys are simply wrong waiting for signs of high estrogen.