My chest has always been my weakest point and one that I almost dread training because of it. I do at s see good pumps during/after but typically I feel my shoulders are doing most of the work or just fatiguing well before the chest feels like its done much. I have noticed that with the development I have it looks bigger on the outer chest and visually looks to stop before getting to the sternum. From a side angled view its almost like a noticeable line down the chest before getting to the middle.
Any reasoning or tips to fix would be much appreciated!
As far as form/execution, really tough to say for sure what’s missing. When your in the stretched/lengthened pec position, be sure your shoulder blades are retracted and depressing (they can move as you come to the finish). And always keep a “big chest”, full of air, and big lower back arch. As far as development across a muscle length, can’t really offer much there. There’s really nothing you can do to bias one end of a muscle over another (origin to insertion)