The other thing that held me up today was the pictorial of the underside of the board where these two capacitors are to be installed. If you have a look at the top right corner of the board, you can see the resistor network RP2 installed in its rectangular outline on the board. Just to the left is a round solder pad with the ambiguous marking "1". The pictorial of the underside of the board implies that that is where RP2's pin 1 should go. I think the marking on top of the board is most likely correct and the pictorial probably represents some older rev. of the board, but I wrote to Elecraft for clarification.