Scott,
as you already know, I have to agree with Roel: the Registrations offer a much more complete way of storing one's data. I like to tweak a lot of parameters (especially the effects and the Eq sends) and the Music Finder simply won't allow me to store these. On the other hand, the Tyros (1 & 2) is such a powerful and also easy to edit keyboard that it would be a pity to play it just the way it is, without personalizing things a bit.
Come on... time to be flexible and adapt yourself to reality!