T Nation

lateral and posterior delt involvement

When I do shoulder presses, with dumb bells, if I rotate my hands from a neutral grip at the bottom of the movement to a pronated grip at the top of the movement will this involve my lateral and posterior heads more than my anterior? The reason why I ask is my lateral and posterior are behind in growth compared to my anterior. I have been using Shugart’s 3-2-1 shoulders for the past 6 weeks and I am seeing great development, but want to try and enhance it a little more.