Starting with the greatest hits from the 1990s made for an interesting beginning, given that the driving force behind the blitz in the first place was to make sure I was paying attention to the unfamiliar songs in my collection.
There aren't many unfamiliar songs for me in a 1990s retrospective.
However, The Blitz Effect appeared when Smells Like Teen Spirit came on. At first, I more or less tuned out. Not purposefully, nor in a contrarian manner, but just instinctively because this is a song that I've listened to hundreds of times, so naturally my brain went into coasting mode.
Then, after the first chorus, I realized that while I have listened to this song a lot, and this was while I could listen to any song I wished when not blitzing, right now, this would be one of only two times that I would hear it over the course of the next year (or two, or more -- not sure how long this one will take).
Consequently, I listened to the rest of the song more carefully than I had for a long time, appreciating it as much as ever.
Blitzing, therefore, works as well for old favourites as it does for undiscovered treasures.