Can you say some more about that? Roughly how many Areas do you have - and what sorts of thing go into them?
And how do you actually use Context?
And how do you plan your day in terms of Context?
[Aside: One of my problems is that I work form home and most of my stuff happens from the single Context of @PC!]
Also how often do you review which of your lists and roughly how many tasks are typically in each of said lists?
Either way do you take my point about having too many tasks in the Someday list means that it's very easy if you move stuff into Someday that it slightly gets lost in a sea of Someday tasks?
On reflection I think part of my problem is that I am semi-dyslexic and reviewing a long list of say 100 items even once per day is difficult and may not always get completed.
Out of interest are you also using sort order in order to indicate the relative priority between tasks?
As an aside from what I can see, even having a "Focus on Today" list isn't very "GTD", no? Although personally I find it crucial!