Is this correct? Adding a jfet boost

[Kristopher]

I'm adding a jfet boost to an Octave Multiplexer xo.
Does this sketch look correct?

[antonis]

Rewire the 3PDT switch or you'll get a PS short-circuit when switch is in upper position..

If you want the boost after the effect, connect PCB OUT to Boost IN & Boost OUT to Jack OUT..
(other INs & OUTs as normal..)

Connect Boost +9V to any convenient point but not through 3PDT switch..
(it will be activated by stereo input jack w plug in..)

[GibsonGM]

What about a Mosfet boost?

[antonis]

What about a Mosfet boost?

I give up, Sir...!!! 

(can't fight your incurable bout...) 

[nonoxxx]

if you are already adding an  3pdt switch why not
adding  2 ?

like on this layout

On your drawing the 9v is connected directly to the ground in the 'up' position

[antonis]

I believe Kristopher wants to modify the already excisting 3PDT switch with permanently placing the Booster on effect's output... 

[Kristopher]

A big thank you to Antonis!
You pointed me in the right direction. Literally.
I was looking at the switch backwards. In's were out's type thing.

I never wanted a separate switch for the boost; just unity volume when engaging the pedal. The Multiplexer has a volume drop which makes it unusable when live.

The. Jfet boost is supposed to be a clean boost. But it has a little bit of grit, which i can live with. I may pop in a LPB-1 later on,  we'll see.  The  jfet schematic I found online, in a buffer boost build lesson at Seymour duncan and/or Tonefiend. I plan to set the trim pot at unity (or a touch above) and enjoy.

Again, a big thank you.