Vortexx, leuk om je weer te zien hoor.
I have never seen a man develop nice fully rounded pecs from just flat benches. The angle of the motion appears to be quite important. I also agree however that there seems to be a genetic factor as well. Some fellows get that droopy tit look even though they do inclines as part of their regualar workout and there are others that are much careful about doing different movements and have far better pecs.
I am a woman that has C-level breasts so i cannot see my lower pecs anyway. After several years of flat benching only i still saw rather little beef above my boobs even while i could bench then about 190 or so. Five more years of concentrating on inclines and i now see MUCH more thickness at my sternum. My flat bench is up to around 260 now. Inclines helped my thickness obviously but they also i belive helped me to add quite a lot to my flat bench by making stronger the upper area of the pecs.