Heres a nice thread with what can be done with the 1k/3k dress stone. Frankenstien and Utopian both used the Gok as a one stone hone with the dress stone to make slurry.
I hear some say that they find it a fast stone. I do not. In fact, when I need to refresh I usually do three to five passes on a 12k to speed things up before going to the 20k. I suppose it depends on how much touching up is needed.