Page 19 states to offset the servo horn by about 5-10 degrees, and page 20 shows the servo link to be about 20.5mm. I used a digital caliper to ballpark set all my links throughout the car initially. However, I did find I needed to remove my servo horn and pop it over 1 more setting on the servo gear teeth (probably ended up more in the range of 10-20 degrees), as well as slightly adjust the servo link so the steering rack was centered perfectly. From there it was very minor adjustments on my radio system.