Hello. I'm an electric bass player but I like to come here for certain things. I have no idea of what the practical range of the DB is so excuse me if I'm off... None of my practice involving reading has gone above the A at the 14th fret of the G string which is easy enough to read but I have neglected the last bunch of my fretboard (not that it comes into play much- I am primarily working up there just for continuity in playing multiple octave scales). I am working out efficient fingerings up there but I keep forgetting what I've come up with from day to day so I want to notate my fingerings. That's a lot of ledger lines! Granted this should be a short-term project and anything would work, I want the fewest impediments to my sometimes-feeble brain. So my question is about using 8va vs ledger lines. Is there a standard point at which things switch? I do note that the Berklee Chord studies book goes up to 5 ledger lines but I still have several frets to go. Your guidance is appreciated.