I wanted to start a thread about building double neck basses. In my case I am a 4 string guy I want a four fretted and a four fretless. This would not be another bass I would make to sell on e-bay or for a customer this would be for me. I am tired of switching back and forth when my guitarist calls out the tunes. Has anybody done it? Any advice or tips or links to other double neck basses that have been done before? Any and all info relating to them would be great.