ive started benching and dumbell presses for awhile now. i built a lot on my upper pecs close to the arm, but thats about it. very little lower pecs and little in the middle part where they almost meet. its like i only have the one spot up by my arms that extend out more than the rest of my chest. can someone please help to tell me how to get more growth on lower and inner middle pecs? i know about decline bench but i dont think thats working too well. and for benching i seem to push a little inwards from the sides instead of straight up because it hurts my wrists to hold the bar straight bending my wrists. am i doing something wrong? please help