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Thanks Brian.  One of the things we are working on these days is a Macchiato software upgrade that will reconfigure the knobs for other functions.  It should be fun when we get it done.

The traditional way of doing this is to use a variable voltage regulator.  The LM319 will work at the cost of around 2.5V (meaning the input has to be over 2.5V of the input).  This would work if you are wanting a really low voltage for a pedal, or are powering the circuit with something larger than a 9V supply.  A better solution is to use a LDO (low drop out) adjustable voltage regulator.  I've used a LP2951 for this exact purpose in a pedal power supply.  This IC has a dropout voltage of around 350mV, if i remember correctly.  The datasheet has a formula you can use to determine the external parts for the range of voltage you want to pass.  The package i used was a surface mount device...I don't know if it comes in a TH package.   As always, when using these types of devices, mind the current draw of whatever you're powering.  The picture is a snapshot of my schematic of the regulator circuit.  I don't recall, off the top of my head what the output voltage range is programmed to be via external resistors.

I must say it was such a pleasure assembling this kit.  Everything was so thoroughly well explained and thought out.  Some challengers new pedal builders would normally have (led height, working out the different components, shorting of the pot housings on the solder joints, etc etc) with a complicated effect are solved with your kit.  I think anyone with basic soldering skills and patience could put this effect together no problem.

Thanks for the kind words, Paul.  One of my passions is to empower and enable musicians to be able to understand their own gear on a technical level...to not be intimidated by the idea of repairing or even building electronics.  We put a lot of effort into making our kits easy to build and understand.  As you know, it's such a cool feeling to make music with the gear you've built. 
...and thanks gordo for the welcome.  This is a great forum/community.  I've got to to commend Madbeans for fostering this DIY culture which encourages anyone and everyone to make something cool!

Wow Paul! That's so cool that you powder coated it! I will admit that it looks very nice powder coated...it even matches the PCB.  You'll definitely have a one-of-a-kind custom Quaverato now!
I was going for more of an "industrial" look with the bare metal chassis.  That's just my design style, I guess. I studied graphic design as well as EE in school, so I'm very drawn to a product's "look" as well as it's functionality. We may consider powder coating our next pedal if I can find a way to keep the strong "industrial" theme going.
Thanks for the suggestion!

You can always change the clipping diodes for an easy mod.  Try making them asymmetrical...try replacing LED1 with 2 silicon diodes (like 1n914 or similar).  The red LED's Vf is usually around 2V, and the 1n914 is around .7 (1.4V as a pair) so you'll get around .6V difference between the positive and negative half of the signal.  This should cause it to break up a bit earlier.  You can also try changing both LEDs to silicon or germanium
(Ge) diodes for a completely different break up point...both will break up much sooner than the LEDs....especially the Ge diodes.
The original BB used 2 pairs of silicon diodes (if i remember correctly), so it must have had less voltage driving them.  To make the BB2 more like the BB1 you can reduce gain by lowering R10 (to lower the gain of the first opamp stage) and/or lower R13 to shelve off some more signal before it hits the next opamp stage.
I hope this is helpful.
-Brach

I just wanted to jump in to answer Aentons questions...
The enclosure is a custom chassis we had made.  It's laser cut 18 awg galvanized in 2 parts, held together with screws and threaded inserts.  You can check out our assembly manual if you want a closer look.  We just had a local sheet metal shop make them for us.
The faceplate is actually a die-cut polycarbonate adhesive label.  It's basically a thin piece of plastic with 3M adhesive on the back. We had good luck using this type of label on our Percolator amp so we decided to try it on our pedals.  They seem to work really well for this application...they're super rugged.  You can get them from a lot of label/sticker manufacturers...we used Tailored Label in Wisconsin.
Let me know if you have any other technical questions.
-Brach