I think that people in general should start with incline b/c thats seems to be the most lagging bodypart on most people and even the pros. somepeople let their ego get in the way of building a compete chest by starting with flats first and by the time they get to incline they're out of gass.
I did this too. I would get up to 315-365 and when I get to incline DB press. my chest was already dead. so, I changed to more of a "bodybuilding routine" by doing inclines then flat bench. I use to train power-building style were you did all compounds first.