switch noise - fuzz and delay

[mcasemo]

I was battling some switch noise on a PCB i made, selmer buzztone into a ZPMII / Deep blue delay.  Thought I had it licked with a bad solder joint, but...

I still get a noise after the switch on of the delay, with fuzz already on, at the time of the delay. So Fuzz on, hit delay, XX ms later little step/sound.  This is more prominent with more fuzz and volume.  Pin 7 and 8 on the PT2399 increase in voltage with the volume/gain of the fuzz.  Switch the fuzz off, they go to similar values (0.6ish).    Is this normal?  I don't know what they do.  Pin 7 goes to higher voltage at the same time of the noise.  Pin 8 switches immediately. 

Any thoughts or ideas welcome. 

Looking at moodring, and having built one, wondering if the true bypass setting that may cause more switch noise is similar, or expected.  I don't want to rip this one apart if i can make it better essentially, haha. 

[mcasemo]

Bump.   Anyone know relationship of pin 7/8 PT2399 voltage to input gain?  And how they react?