Actually, you CAN grow the upper chest apart from the mid/lower chest(one unit). Look at an anatomy chart of the muscular system. Your pec is divided about 2/3 the way up your chest. Upper pectoral and lower pectoral.
There are many people who do not have an appealing chest, even with good size, because their upper pec is undeveloped. It gives the chest an almost sagging (muscle boobs) appeareance. Incline is the only way to get a full and tight good looking chest.
Search for khemix's profile pic and you will see his chest is full, sits high and tight. He has a great chest.[/QUOTE
Bro forget it no matter how hard you try, you are not going to convince seatleite because he is, how can I say it... dogmatic...
He is extremly opinionated, and that is called, what we say in the athletic world, uncoachable.
Just look at a picture of a pectoral muscle chart. Even look at BBers in contest condition. You can see that the chest attaches at many different angles across the ribcage and sternum.
Incline pressing WILL target the upper portion of the chest more directly and give you better upper chest development. you can even feel it with your hands if you do the motion of flat and incline press, that the incline involves the upper chest WAY MORE than the flat bench does. It's true, a fact, and anyone's opinion can't change that. He can think what he wants, and call foul at flys and incline pressing all he wants, but in the end, he is the one who will not benefit from doing them.
Now, as for inner chest devleopment, there is no way to get your inner chest to fill in by itself. That comes with development of the chest as a whole.