Hi Nerowolf:
I completely understand what you are trying to described about various espressos profiles. Another quick note, sunlight will accelerate coffee’s oxidation process, thus coffee will lose its flavor (the high notes) sooner than it should. I keep my coffee in brown kumbucha bottles. Sorry to say I think air tight sealed bags are pretty useless.
Pulling a good espresso is a complicated process, aside from using the freshest beans possible and frequently tuning the machine. Thus I find only a handful of coffee shops I can rely on … Klatch in San Dimas, Intelligentsia in Silver Lake and Portola Coffee Lab. The reason why they got it right is because the shops and their baristas are serious about their coffee.