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Ok, I believe I understand now.
It's the fact that the audio jacks from different pedals are referencing different polarities, retaliative to themselves (right concept?), that when you daisy chain, those two "unique potentials" will now be connected, and therefore no longer unique, therefore shorting out.
Gentlemen, and of course Ladies:
Am I even close?

I'm going to try my hand at a germanium fuzz. I found the ElectrSmash site, and have decided to (kinda) emulate that.
There is just one problem for me, this paragraph:

Only using a 9V battery, no external power supply: The original Fuzz Face using PNP transistors uses "positive ground" that means that the input and output jack are referenced to 9V (instead of ground). You can plug it to your pedalboard or amp without any problems BUT if you use a daisy chain or non-isolated power supply to power it, they will create a short. The best way to avoid conflicts is just to use a 9V battery, the low power consumption of this effect (2.5mA) will make your battery last for very long.

I consider myself only a seasoned newb to this stuff.
I can't visualize/understand the DC itself shorting, if neg is connected to the spot in the schematic that denotes neg, and then pos, to pos. *note* I use plastic dc jacks.
Is he saying the 1/4" guitar patch cords may/will short? i.e. the practice of using a stereo jack on input as a switch? I thought the input/output caps were there to filter dc from the i/o and prevent that.
And if the 1/4 will short, then what difference would the power source  itself make, if the ped was in an audio daisy chain?
Would insulating the jacks from the box have any effect this?

I feel this is a concept I should *fully* understand, and thank you all in advance for any insight.

Hmmm. That's a tad to consider. I had thought it may be the input cap. As far as if its in his rig? He has since given the pedal back, so...
I don't hear any feed back, but again, I testing using a Bass, or a 6. both played through a 25w Bass amp.

OK, let me hijack my own thread: What effect on the sound does the bias on Q2 have?

I can start a new thread, if I should.
TIA

I modded a FF with a bigger input cap for Bass. I loaned it to a 6 string friend of mine who wanted to check it out. He found he got a hint of feedback if the gain went past 1/2 way.
Here is the schematic:
https://ibb.co/6FJw2fJ
Do you guys think maybe it's transistor bias? I'm still kinda a newbie, so I'm not sure where is start.
TIA

I've been comparing the schematics of the EH Bassballs and the Slurpee. I noticed a 2.2M connected from input to ground. the other end is connected to a circle with the word pin inside it. The other circle with a pin inside on the schematic is connected to ground. Does that imply that both ends of the 2.2m is connected to ground? and the input also. i don't know a lot, yet, but this doesn't make sense to me.

I have a scrap computer I need to off, and see I see a lot of yt vids on this. Has any here did this? is it worth it?
TIA

Pardon the hi-jack. Where would one find that parts library?

Mauman. Thank you for answering. I guess my SMD question through you off.
Jimilee. Yes, that how I got it. I spent almost and hour surfing bing images only found one, in which the cap's behind another part. I could barely see the pcb markings.
Gordo. My cap was rather neat. Just looked like one took the case off, and left the paper neatly rolled together.
Bio77. I'll take you up on that offer. If you agree, I message you with my address.

Moving forward, I cobbled up a polarity switcher upper with a dc plug and socket. Hooked it all up, turned it on and I couldn't get anything to show up on my oscilloscope.
Is there a chance I damaged other components during this incident?
Well I'm stepping back now and wait for tomorrow's fresh mind.

Thank you. Is the dark side pos the with surface mount caps?
Now if I had cap backwards, and the PS backward, why did it pop I wonder?
what parts should I start to suspect is damaged by this, when I swap my caps around and it still doesn't work?
I guessing at the IC

I did fail to mention. the silkscreen and the instructions both have half the circle darken to denote polarity instead of a plus sign. I assumed the dark half was negative. 

Like breaking a Bass guitar string, it was a draw changing experience .
The circuit is an Onyehn XR2206 Function Gen Kit
Wow. As I was writing this post to ask how to proceed, the cause hit me like a ton of bricks.
Don't use a pedal wall wart to power other projects
I guess now I need to change the cap, find a different PS, and see if I cooked it .
Before I begin, is there any considerations I need to know about?

Thank You for the help

I am currently working on a Bazz Fuss w/gain for a friend. He wondered if it could be modded to allow varying degrees of fuzz, like a Fuzz Face. I'm still new to this, so I'm afraid it might be beyond my pay grade. I know it can't be as simple as just adding a pot and cap between to the transistor and ground. First, I couldn't be that lucky, and second, the FF has two trans instead of one like the BF, so where would I connect it.
TIA

I just got home from work, and planned the first thing I needed to do was apologize for the confusion. With similar avatars, and the fact that jimilee so often has a solution for me...
Gentlemen, I am sorry.

Thx for all the help guys,
Jimlee, those are exactly what I'm looking for. Spacing wont be a problem as I make my own boards