Check out this 28 fret bass that converts to a 30 Fret long scale on the low E
 
http://pauljacksonbass.com/newbass.html  
 
(Paul Jackson re:Herbie Hancock & The Headhunters)
 
VMG

Love the low E extender on this. Don't see a lot of those.

paul has collaborated on quite a few of Jan-Olof Strandberg's records. Well worth taking a listen.
 
Graeme

Jan-Olof Strandberg and Paul jackson playing Indian Funk is fantastic.
 
VMG