Thank you for updating fast.
I finished the building. But after the first testing, one more thing I noticed that Q1 collector isn't powered by V+, but linked to IC pin 6.
I modded the vero board a little and... it worked perfectly!
So it will be verified with Q1 collector fix!
Thank you again for the layout.
Sorry for my mistakes and confusion. It's been, I guess, my first big layout.
I don't know how you had correct the layout, but I do it flipping the transistor Q1 and moving some parts, then I left out a link and a cut track.
I also moved some cut track for an easier building, and I moved some parts, but just to make more space, none position is changed.
I corrected some information and notes.
This is updated, now. I labelled it VERIFIED, it should be ok.
This is my build.
I installed bass 25k pot instead of switches.
And this pedal has a lot of bass response (like zendrive), so I added input cap switch that select between 2n2, 4n4, and original 470n. Though this mod is may not the way the pedal was originally intended, that worked fine in my case.
Recently I don't pay much attention to case outer design.
Ok. I drawn the layout some months ago, but probably I didn't analyze the schematic, so I did it now.
The bass response that dirtybogner hears is indeed a little hump around the 125Hz caused by the transistor eq gyrator, this hump is noticeable even when the bass switches are closed (or the Bass pot are at zero). The switches cut off some db but not soo much. This feature is reported in the description of the pedal on the Xotic web site: the min boost is 2.4db, the max 6db. It's always boosted a bit.
To remove totally the 125Hz bass hump we have to jumper the 18k R6 resistor. Actually, doing this we could lost something more of 1db of overall gain, but I have doubt we can hear it.
Using simply a 2.2nF as input cap like the new switch added by dirtybogner, though the cap value is reduced drastically, the low cut is in the very low frequencies. I expect we can hear it, but not so much.
And, about the bass pot that replaces the switches, though is a good idea, that is a control of that db range of the 125Hz, exactly how the switch does, but just we can do it with a pot.