That's my original one, which, I have to say, I've never really had a noise problem with. I DID have to drop Q1 and I think Q2 down to MPF102's, but that's about it. Mine has a rat's nest of wires, which are currently contributing to a little bit of noise finally, and I'm not surprised. Using all J201's (and the non-scaled-down tonestack) it has a ridiculous amount of gain that I couldn't control, but sounded fine later with lower-gain transistors thrown in.
There are plenty of people that built it using my layout and didn't have any issues (and I'm sure plenty that did) given proper wiring/grounding (myself included), but I wouldn't label it the 'squealing one'.

However, I AM building one using Gaussmarkov's proven layout now that additional (technical) advances in improving the circuit have been made, whereas I was just trying to get things nicely laid out and not too close together.
I'll post a build report & pics of that one since it's a larger box-build and have extra footswitches installed.
This is such a killer circuit; I always laugh a little when I hear guys on TGP rave over FINALLY getting their hands on whatever little boutique 3-knob overdrive they've been waiting weeks/months for.
It doesn't get any more boutique than DIY.....
- Buck