Sorry Mike. I will try to contain myself to this thread. I began construction of wing 2 tonight. I ran into the same problem. I took some pics along the way so maybe we can figure this out. I don't think R2 is the problem. It is either builder error OR R 3&4. I want to stress up front that my building table is perfctly flat.
I will skip the prep work as laminating R1 and R1A doesn't have any bearing.
I will post this in multiple threads.
Let's start with pic 1
In pic 1 I have pinned the main spar to the board in perfect alignment. I have also pinned down the wing template. The templase is mounted flush with the root and in alignment with the plans. This is also sitting flush with the building board.

Pic 2 just shows the center lines on R1 and R10. I also marked the center of the other ribs in case I needed to check them.