Related note:
I was wrenching for someone with Koni's that I (and they) weren't familiar with. Of course the adjustment knobs were missing.
Lucky enough, these particular konis went from super soft to hard as a rock. I rotated them all the way one way, then applied the high-tech, super accurate, get a fat dude to bounce on the quarter panel shock dyno method.
You could also use the fact that you don't know which way is which as a learning opportunity. Turn one all the way CW and the other all the way CCW and drive it. Now you'll know the difference in feel. If you can't tell the difference in handling turning right and left these settings are probably something you don't need to be messing with yet.