. . . the Quickie instructions tell you to connect the 4.02K resistors to A6 & A4 and B6 & B4. . . .
And now that I have seen the PJCCS manual I see that it says that you clip the resistor from pin 7. That is a mistake. It is on pin 6 which is clearly shown on the PJCCS manual page 15.
Looking at page 25 of the manual, not PJCCS, you see that one lead goes through A4 and A6 or B4 and B6 with the other end of the resistor free. On page 26 of the manual the free ends of both of the resistors go into one of the center lugs of the power switch.
Therefore the PJCCS wants you to leave the part of the resistor lead jumping A4 to A6 and B4 to B6 while inserting the CCS between the power switch center lug and tube pin 6 for each channel. You will also have a ground lead (not connected to either of these) on the PJCCS board, I'm pretty sure.
It sounds like you are doing the build and upgrade all at once. This is why it isn't suggested.
It also sounds like you have put the 4.02k resistor
from A4
to A6 etc. that would affect your resistance readings in your other post.