I need some help in developing my chest. It won't grow and it seems out of proportion with the rest of me. I have 18" arms, 26"thighs, but chest is only 44" . For my routine I do 4 sets of bench press, 4 sets of incline, 2 sets of close grip bench, and 2 sets of incline flyes. I have always done bench movements, should I maybe switch to dumbbell work instead?