A-B/Tuner out with buffered out

[Governor]

Hi, I'm looking to put a buffer at the start of my signal chain, and have done up a diagram of what I'm looking to do below. I built a clone of a little black buffer a while ago and works great but it would be nice to be able to have a tuner out as well as be able to bypass the buffer if needed using a toggle switch, this would then turn it into a simple A/B box (will work as a simple A/B box when not powered as well).

Any issues with what I've drawn up?  Ie. popping when switched.  It consists of:
- foot switch top/centre to switch between tuner out jack and buffered out jack
- toggle switch to bypass the buffer to the buffer out jack
- LED's to indicate which output is on
- a second DC jack wired in parallel to power the tuner

[PRR]

... ...Ie. popping when switched.

Hard telling not knowing. What is this "buffer"? A leaky twitchy thing or???

The wiring looks correct except I miss an explicit signal ground to the buffer. I realize this probably follows power common.