Reread the protocol for injections sticky.
Twice a week would be good for you, take 1/2 mg anastrozole at that time. With that you will get a rise and fall of both T and anastrozole levels that will be roughly in balance.
If T levels are steady, twice a week is not, then anastrozole should be dosed EOD because of its half life.
hCG half life dictates EOD. For those you use hCG, injecting T, injecting hCG and taking anastrozole all at the same time makes sense.
Injecting once a week creates large changes in T levels. Anastrozole levels cannot be maintained in a proper balance to T levels. Most who switch to twice a week or EOD prefer that.
When you inject once a week, lab results are greatly determined by lab timing.
Tamoxifen/nolvadex does not reduce E2, typically it will increase E2. As it is a Selective Estrogen Receptor Modulator, not all tissues will be shielded from E2.
Anastrozole reduces T–>E2 aromatization. Men have aromatase, and low dose anastrozole does modulate E2 in men. Stick that in his face.