The Various Uses of Wspace

I was looking for information on farming sleepers in C4 (not easy to find).  But I did find a good discussion of the uses of various levels of wormhole space.  C1 is different from C2 is different from C3, etc.  Each level has its own flavor.  The main post is good, but don't miss the comment by wokyr which is excellent (I learned a few things).  I've been thinking about doing a post like this and still might, but until then, consider it included.