Thank you for responding so quickly.
1) I'll change the mounting for the Kobo (and card) to operate in sync versus async. Dang, I should have remembered that.
2) Not a "major problem", just a mosquito bite
3) Calibre doesn't know/recognize/understand that I might have my "SciFi" card in the reader this time, when I had "Mysteries" in last time. Like I said, not sure if this is Calibre or just the (cheap/minimalist) Kobo.
Again, thanks for the fast response.