This is common to see a great libido in the beginning and a decline months later, which usually means the T levels are too high.
Men on blast and cruise report diminished libido, but once they return to normal levels, libido is back.
Gert your DHEA up because it's a precursor to other hormones.
We're both on t-nation, too, and you know well, the back and forth about dosing(amount & how many times a week) and the bro science. There's one guy, that, with the exception of 300 mg every two weeks, seems not to respond nor do ED meds help him. On the other end are men doing 10 mg daily or one small dose, weekly. The one physician on there has had personal success and patient success with once weekly injections up to 200 mg and a few patients, 250 mg. I believe it was six months for him before everything came together.
It's a given that generally, men come to this forum and t-nation because they're having problems with their protocols or the labs look good or, even great, and their body isn't responding. For some, more is better. For some, less is better. For some, subq. For some IM. And for some, just dead in the water. Agree that dosing adjustments take time. Months. Even a year or more. That said, I don't think it's unreasonable for a man to want to see improvements or restoration of his erectile function, in weeks, not months or years. But, what we desire crashes into the reality of individual physiology and neuroendocrine function which are not under our control.
As a 72 year old, it hurts when I read of men in their 60's or 70's getting on T, whatever the form, and experiencing restoration of erections and improved health. There's much that isn't known about TRT and the endocrine system and why some men do well, some moderately and some poorly. Dr. Chrisler had patients who had more negatives than positives on testosterone. My
urologist apprenticed with Dr. Shippen, who was as much a scientist as a physician and I have to believe he had to have had patients who responded poorly or not at all. No physician, IMO, has a 100% success track record. We all just keep trying.