You get two full scales on the 24 Fret John Hartford Banjo and the added length of the neck moves the bridge to the center of the head giving a more rounded full bodied tone!
The 24 Fret John Hartford model – a new sound in a full bodied banjo that gives you two full scales up the fingerboard. This Hartford has a big round tone that is full bodied with great bass and sweet highs. With the -06- tone ring and 24 frets it has a more distinct bell like ring to it, with the Grenadillo tone ring it has a more woody ringing tone.
Both choices of tone ring give that distinct round and fruity John Hartford style of sound.