Steve:
Here's my results so far...
1. Initialize
2. Sync "Best" SL
*Disconnected iPod, playlists OK*
3. Rated 5 songs
4. Sync "Best" and "Rock Stuff" SL
5. Rated 5 songs
6. Sync "Best", "Rock Stuff" and "NR" SL
7. Rated 5 songs
8. Sync "Best", "Rock Stuff", "NR" and "Pop n Stuff" SL
*Disconnected iPod, playlists OK*
9. Rated 5 songs
10. Sync "Best", "Rock Stuff", "NR", "Pop n Stuff" and "Comedy" SL
*Disconnected iPod, playlists OK*
11. Rated 10 songs from "NR" SL on iPod
12. Sync "Best", "Rock Stuff", "NR", "Pop n Stuff" and "Comedy" SL
*Disconnected iPod, playlists OK*
13. Sync "Best", "Rock Stuff", "NR", "Pop n Stuff", "Comedy", "3+", "Best 12 Days" and "1 Week Old" SL
*Disconnected iPod, playlists OK*
So far, so good(?)