I still can't get a good explanation for what good effect people think exogeneous DHT has. A large, large portion of it is converted into estrogens 3α-androstanediol and 3β-androstanediol, which bind to both ERα and ERβ, to the latter with better affinity, and does not bind to androgen receptors. The enzymes that convert DHT to these hormones are 3α-HSD and 3β-HSD and are abundant in the liver, skin, muscle and brain and are metabolizing all of that DHT you're putting into your blood. In the brain, 3α-androstanediol is responsible for the pro-GABA effects and 3β-androstanediol for the anxiolytic effects and also the regulation of hormone production through (the suppression of) the HPTA.

If you want DHT's effects in the muscle you need to take something artificial that can't be 3β-HSD reduced, like anavar.

Otherwise, with DHT being a paracrine hormone in tissues where it has an important effect, it seems better to supplement with the pro-hormone (T) and support 5α-reductase production.