1st off, I don't believe it matters. I just finished this build and tho there were some "isues", it turned out well in the end.
2nd, when I was reaching out for help via this forum, no one responded to me. When I'd write Andrea an email directly, he'd answer if he had the answer. If he didn't, he just wouldn't rerspond. I ended up going to 18watt.com as I have a "presence" there to get the help I needed to muddle through it.
What I found troubling was that this PCB board and layout that comes with it are pretty straight forward, but the schematics don't match up 100%. The changes and modifications that Andrea added, came with no modified schematic. This made troubleshooting difficult and I did have some troubleshooting to do.
However, I got to the end. Came out nice. I'm very happy. PCB board was very nice quality. Just not much of any customer support.