Just got photos from the factory of my completed Silver Star TJM140 "Jazzmasters"...they look awesome!
Funny thing, I've never played a Jazzmaster, don't even know what all those switches do. 
[Blocked Image: http://i1240.photobucket.com/albums/gg494/Tokai_Guitars/TJM140%20edit_zpsq3dgjxoi.jpg]
Funny thing, I've never played a Jazzmaster, don't even know what all those switches do
The upper section is a different control for the PU.s.
The lying volume- and tone-poti work seperate to the other potis.
The vertical switch change the mode (upper/lower section).
No switch to select PU
The sound is darker and that's one reason why it was called Jazzmaster.
The lower section is normal Volume, Tone and 3 way PU-selector.
The asymetric form should be more comfortable for sitting musician which seems to be more common in Jazz. (second reason for the name)
At that time it didn't really prevail, but now a rebirth is taking place.
