I have a couple of students just moving into MFPA Book B and I'm concerned that they will be bored if I continue in the MFPA series. If I were to switch over to one of the reading levels, which book should I start with? I'm concerned that the Primer level will have too much that we've already covered, but that Level 1 starts with notes on the staff, which we haven't covered yet. I don't have either the Primer or Level 1 in my possession to review, so I may be incorrect. Does anyone have a recommendation?