My suggestion is probably over cautious but I just had to come off after 10 years of AAS use to regain my fertility and get wife pregnant.
Your suggestions are not overly cautious at all. You already told him the truth in your first post, "Adding anything that increases AAS load will have a negative impact to fertility."
TRT at 75mg is a negative impact, and adding anavar is more negative impact. Your wife may still get pregnant, but you are decreasing the odds.
Maybe you can share your thread with him via a link?
hawkberry04,
Your best odds are coming off completely, running HCG and HMG, then running nothing at all until the wife is pregnant. It takes time for your body to normalize again.
Two kids prior to AAS. Two kids here born after starting AAS, and I came off each time (actually more since my wife lost one).
I am older, my wife is younger, and each person is individual, but the first time my wife was pregnant quickly after I stopped. Maybe she would have become pregnant anyway. I don't know. But I stopped because I knew those were the best odds, and having more children was important to both of us. She had some difficulties after that. As I said, we lost a child late into the pregnancy, and she also had a weird false pregnancy, where her body tested pregnant and an egg implanted but it was not fertilized. Strange stuff, and a bit traumatic for my wife, who wanted yet another child very badly. So there was a period of years where she was pregnant more than not, or it seemed like that. It took a while for the second child (after AAS), but he is a healthy and wicked smart little second grader that spent the afternoon shooting a .22 rifle with me in the backyard yesterday.
Your best odds are coming off of everything, even the PCT stuff. Your body is made to impregnate females. You could impregnate an entire harem if you had access to them. Your body will do its job if you stop interfering with its functions and let it do what it will naturally do.