I inject twice a week, and take my anastrozole anywhere in the 12-24 hours after my injection. Occasionally if I wait longer that 24 hours, I notice I get a little crabby.
As far as hcg, I've been on test for 17 months, and have never taken hcg. I've noticed minimal testicle shrinkage, and no testicular pain. I'd rather not take hcg if I don't need it. Getting dialed in with test and anastrozole was a bitch. If I added hcg, I'm sure I'd have to get dialed in all over again. I'm a real bitch when my estradiol is high. Just miserable to live with.
Besides, I'm just not happy not knowing the long term effects of hcg on a male. Test has been around long enough that I'm content with its long term effects. And after being hesitant to take anastrozole, I'm not too worried about taking .25 mg twice a week.