My own experience with Dianabol was pretty impressive, in retrospect. I used a Bulgarian version of it for my first cycle, alone, and at a dose of 25mgs/day. I was training very heavy, and eating like a horse- and in six weeks I gained 28lbs. Granted, it was very watery weight, and did not particularly improve my athletic performance until I dieted off a lot of the water, but I was left weighing roughly 10-15lbs heavier, after several months of being off, and was able to keep those fifteen lbs for good. This isn’t to be construed as my saying D-bol produces permanent gains, but in my case, after I had lost nearly half of what I gained, I was able to hold on to a nice amount of that weight.
Several years later, I worked my way up to just over 100kgs, while using roughly four grams of anabolics every week. I was able to maintain this weight by using Dianabol at a dose of 10mgs/day, and could have probably done this indefinitely, if that dose were continued- or if I actually wanted to stay at that weight, which I didn’t after a few weeks.