Ive got FK Konigs and they were not professionally setup.
Just got to understand what the symptoms are and measure a each spring before fitting, so you have some where to work from.
FK/Koni are 1.5mm pitch thread, so if marked they can be accurately adjusted for height, the threads constant.
Adjusting the damping is a different issue and rears will have to be paired up in a vice. I used a weight and timed the compression, but thats where the problems start when warmer they drop quicker! Hence race shockers have remote gas cannisters and take around 5 mins to wrm up. A right pain, same process every time you alter the damping, no click stops, cant rely on just turning say 1/4 a turn as if to say internally not adjusted correctly and balanced.
The only professional body would be set the camber and adjust the tracking, a must.