Ok, so what we have here is a cycle that uses moderate amounts of anabolics. A cycle like this, which makes use of Testosterone as well as Equipoise will produce noticeable results in both strength as well as size, and will produce a nice, hard look to the physique. Since this is a lean bulking cycle, I´ll assume that the user will be following a diet which is high in quality calories. Protein intake will need to be high to take full advantage of the steroids being used. Conversion to estrogen is not much of a problem with Equipoise, although it´s going to happen with the Testosterone. Keep some Arimidex on hand, and if your nipples get sensitive or you are retaining too much water, use it at .5mgs/day.
Keep in mind that using enanthate this way will cause a significant build up of testosterone in the bloodstream that will not cease to increase until four or five weeks of injections. This is due to the fact that taking a four hundred milligram injection, and another four days later, still has at least 200mg working from the previous dose. The third injection then adds another four hundred and the first is still not entirely used up. You may realistically have over a gram or so in the bloodstream before you know it. Just be careful, and keep this in mind when figuring out your dosages.
The second theory is similar and is known as "evolutionary neuroandrogenic (ENA) theory of male aggression".   Testosterone and other androgens have evolved to masculinize a brain in order to be competitive even to the point of risking harm to the person and others. By doing so, individuals with masculinized brains as a result of pre-natal and adult life testosterone and androgens enhance their resource acquiring abilities in order to survive, attract and copulate with mates as much as possible.  The masculinization of the brain is not just mediated by testosterone levels at the adult stage, but also testosterone exposure in the womb as a fetus. Higher pre-natal testosterone indicated by a low digit ratio as well as adult testosterone levels increased risk of fouls or aggression among male players in a soccer game.  Studies have also found higher pre-natal testosterone or lower digit ratio to be correlated with higher aggression in males.