I didn't say "suppressed", I said "shut down." For the life of me I can't understand why people keep confusing the two.
100 mgs is not enough to produce 900 ngs a week on its own. My LH is low, but not zero. Of course, I'm suppressed and if I went off my T would probably be around 200. If I were shut down my nuts would be raisons and they're quite normal thank you.
Even when on HRT, I think it's good for the body to at least attempt to produce some T on its own. Same with thyroid. I've been on the same low dose thyroid for years whereas others keep going higher and higher. That means my body may need the extra support but it compensates with some of its own as opposed to needed more and more external help.