As I understand, all three settings (preload, rebound, and compression) need to be balanced. If you had a balanced setup and then increased preload, you should back off compression and increase rebound.
I'm no suspension expert, so don't take anything I say as prescriptive. Here's a question for those that are more expert:
Lets say you had the preload right for static setup. If you increase rebound damping, might you need to increase compression damping to 'slow' the fork down and reduce the possibility of packing-down? Conversely, if you decrease reound, should you decrease compression to produce a 'faster' fork and avoid topping out?
I'm trying to tune out an unpleasant 'weave' in fast corners, hence my interest in suspension. I'm struggling a bit at the moment. Increase the rebound in the rear and the weave reduces but I get some packing. I've got the Sachs rear shock with preload and rebound adjustment, and Showa front forks with preload only.