Kachinsky, you are obviously interested in this substance, so go into the Designer Supplements sub-forum, and you will find many threads on Superdrol. Read them, and post where you think it is most likely you will get an answer.
"Classes of steroids" is nonsense. Superdrol gives dry gains, no bloating. And it should be low toxicity. M14ADD is the extreme of wet (legal) steroids, and will lead to the most water gain. Read my article at MindAndMuscle.net, and get involved in existing threads in the Designer Supps sub-forum here. Everyone will appreciate that, and you will not risk getting banned.