Yesterday I had the idea to try the 2 Days Per Page format, thinking it might be a good compromise with more space to write each day while still allowing me to see half my week at a time. Thanks yesterday to luminosity6 for confirming that Sunday shares the page with a space for Notes, so that the days are always in the same position on the page (which is less confusing to me than if the days cycled through different positions on the page).
So I did a rough mock-up of the 2DPP on blank Filofax sheets, only through Sunday the 26th. I figure if I love this setup after a few days I might order up the insert pack, which would begin Monday the 27th. Lately, about 3 or 4 days is enough time for me to know if the system will fail. I'm so busy with pre-Christmas preparation (and, hopefully, for guests at New Year, road conditions permitting) that if my system can't keep up, it's evident quickly.
To help those of you who are interested in my frequent planner changes, I have added a Currently Using note there in my sidebar above Search. I've been switching every few days lately in my effort to settle on my planner for all of 2011 before the end of January. I have to cram in as much trail-and-error as I can!