I know this is an old thread, but it's very interesting and full of good info.
1-AD for me.
All the "1-testosterone" compounds seem very popular. Unfortunately, once it's methylated, it's a much harsher compound (not just on the liver) - just like methyl testosterone has a very different character to testosterone. The injectible 1-test cypionate seems to be a painful injection.
The double bond in 1-test makes it fairly unique - quite a lot of it (estimated at 30%) makes it through the first pass of the liver without 17a methylation (primobolan has a double bond in the same position, and it's highly valued as a liver-safe oral). Of all the methods of getting 1-test into your bloodstream, 1-AD seems the best to me. 3 x 100mg tabs spaced through the day works great for me.
I will be adding 1-AD into my current "proper" steroid cycle. I'm running 500mg test cypionate for 10 weeks, with a 3 week turinabol "kickstart" (50mg per day). I will be ending with MHN (methyl hydroxy nadrolone, also known as M4OHN or MOHN) for 3 weeks.
I have a ton of dianabol and winstrol pills sitting around, neither of which I particularly like. Dbol bloats me out on 20mg a day, and winstrol makes my tendons hurt. Turinabol is like Dbol v2.0 - the east germans added a chlorine atom in just the right place to stop it aromatizing. I make good gains on Tbol and feel good on it - it's the bees knees.
I love the quick effects and controllability of orals, but don't want to run methylated compounds for 10 or 12 weeks. Bodybuilders with the money to afford primobolan tabs run them for a portion of their cycle, but I'm not Brad Pitt preparing for a role. 1-AD is my primobolan - it's cheap, gives clean dry gains, and allows the old liver enzymes a rest. Just because it's a prohormone, don't underestimate it's value. It's right up there with primobolan and anavar in the bodybuilder's armoury, in my opinion.
1-AD has a few sides for me, but I've run it a few times and know what to expect. The first dose of a 1-AD cycle causes stomach discomfort, so I take it with a big meal. After that, my tum is fine for subsequent pills for the rest of the cycle.
1-AD will shut you down at about week 3, so PCT is necessary. It makes me drink more and urinate more - on 1-AD, I always have to go to the loo in the middle of the night. Libido is reduced, which is why concurrent 4-AD stacking is recommended. I'm injecting test, so no worries. For some reason, 4-AD bloats me up worse than dianabol, even just one tab.
I hope this post helps someone. I just wish 1-AD could be purchased from steroid websites rather than having to buy it separately.
By the way, I'm 43 years old, a chemist, and been weight training for 20 years. I have a full head of silver hair, and no gyno, and I want to keep it that way.