They're still called one piece necks. Doesn't matter if the fretboard is separate. For that matter, the headstock and neck are joined with a scarf joint. Go figure, it's just the terminology. The number of pieces tend to refer to the individual pieces of wood running length-wise down the neck. The fretboard is never counted.Does it have a separate fretboard ? I don't see how that's a one piece not like a Fender anyway with the skunk stripes . But if you say so .