I've been getting mixed information about dumbbell flyes. My trainer says that flyes would just be a waste of time because they work to sculpt and define your pectorals, whereas I'm trying to bulk up and add mass. I've read various articles that say that dumbbell flyes work wonders for adding mass to your chest.
I'm fairly "small" at the moment because I've only been working out for about 2-3 months.