Not sure about studies, but I was under the impression that the stronger the androgen, the more CNS effect it has. Fighters have been known to take halo to increase aggression, and a buddy was taking it and he sure was very short tempered. Fina is supposed to be highly androgenic, so I would imagine that could lead to more CNS stimulation which will cause outbursts. Dbol is supposed to have a dopagenic effect, which can give you a nice boost leading to outbursts. Personally, Clen/ECA and NYC cause my temper to flair and "Hulk-Out" to the point I want to rip heads off. So I beleive in RoidRage, it is just how you deal with it that counts... save it for the gym and it's all good.