IME, delays, filters, modulation effects, digital... these are what generate Mutable's Level Zero troubleshooting.
Overdrives and fuzzes are good for developing your troubleshooting chops, along with some research into what these transittor and oh-pamps do

Not sure what "Mutable's Level Zero troubleshooting" is, but I have been doing some reading on "these transittor and oh-pamps". Hopefully, I will start to understand how the circuits shape the sound.
Sounds like you have some decent chops if you've come this far. I think the hardest parts of putting a project together is:
- sourcing parts
- troubleshooting if something doesn't work, or doesn't work properly
I am looking into buying an assortment of pieces to have on hand for future projects.
I didn't have any troubleshooting on the pedal, a little on the pickups and switch. IN a way I am looking to troubleshoot to understand deeper, but if I never have to troubleshoot, isn't that like winning the lottery.?
A number of things make this site a lot easier (and I have no skin in the game, I've just been here so long it's second nature):
- really good support from the forum (lots of smart people to help you)
- really good documentation, including a description of the circuit, it's history, potential pitfalls, and enough information that you can follow how/why the board does what it does
- links to help with part sourcing
- drill guides are spot on
Sounds great, especially "enough information that you can follow how/why the board does what it does".
That said, what do you like? I can vividly remember my first visit here (around the time the wheel was invented I believe) and being blown away with the scope of projects available. I'd steer clear of analog delays and modulation for a first Bean project, only because these are rather expensive in parts. Complexity is mind over matter but when you're shelling out a lot of coin for expensive chips you want to know that you have a solid track record.
There a quite a few projects here, so I am trying to narrow down the next one to tackle. Also something to fill out my pedalboard some more, though duplicates that aren't duplicates isn't a horrible thing. I am considering a chorus, phase, or a wah.
Thanks all for advice and guidance.