light bulb just went off... Colonel and fietsbob, thanks for the suggestions - sorry for being so dense, I didn't think of using the post to fix the angle, I was more focused on the angle of the arm relative to the frame. I'm new to cantis, and haven't fully learned how they work yet. The Jagwire pads have a long enough post that they now are more or less lined up correctly. Just for curiosity, is there any potential brake force issues with the calipers rotated outward? Also, I only got the Jagwire pads because LBS had no other options - I have KoolStop on my other bikes, will probably buy some and swap them if I don't feel that I'm getting enough performance.