I call it the Jender W bass:
Its a double neck Jackson king V with Fender J bass necks, matching headstocks and the bottom is reverse.
On the top there would be a four string Floyd Rose, four custom EMG MM pickups with built in effects:Brdg-Fuzz M1-Chorus M2-Big Muff distorton N-Auto wah all with an effect bypass. All pups would have volum, tone and BTC controlers. The system wld also have a true bypass for when I'm playing the bottom. The strings wld be as thin as possible.
On the bottom we have a Tune-O-Matic four string bridge, an ATK pup with its own volume, tone, coil selecter, EQ and bypass. The bridge pup would be a custom EMG split MM pickup(that's 2 MMs in one unit) with volume,tone, bypass, etc. And supe heavy, super slinky strings.
Neck-thru construction.
Top neck is ebony, 32" scale with 26 frets.
Bottom neck is Flamed maple with a matching finish, fretless, 38" scale.
Cherry burst finish.
Two input jacks.
Custom twin headed right angle amp chord.

And all of my equipment would be water proof, water resistant and water retardent. I hate not being able to play in the rain.