There are 3 settings of preload on the rear/rear spring. Stiffen it up until you have 2-3" max of sit in. That will set your ride height.
Then dial the clicker stiffer until you don't bottom out going over big bumps. An occasional bottoming on a big bump is ok, but you want to dampen it so that the majority of the time you don't bottom out.
sled_guy