It depends upon how you ride...
Does most of your riding involve hours in the saddle?
Does most of your riding involve an hour or so?
I'm 5'11" and most of my riding involves an hour or so in the saddle commuting to work with occassional all-day jaunts on the weekend.
I chose to get shorter shocks rather than 'scooping' the seat.
Most of the time I'm in stop/go traffic commuting about town so I'm having to put my feet down all of the time.
Yet, I do have all day rides on the weekend so I still need to comfort of a 'full' seat.
While some need/choose to forgo the expense of getting aftermarket shocks, I felt that doing so would allow me more flexibility while maintaining comfort.
Besides, the stock suspension was too stiff and beat the h3ll out of me. Progressive 440s were just the ticket.... best money I ever spent.
