Most of the charts I've seen show Testosterone stabilizing between 4 and 6 weeks, but most people don't call that being "dialed in". When I think of being dialed in, I think of finding the perfect dose for you that is your best compromise between sides, and optimization, and/or goals. Those interested in longevity are often trying to find the lowest dose that they can maintain acceptable function/mass on. In that sense I'm never dialed in. I'm saving dialed in for when I'm 70.