Very long introduction to last two paragraphs:). Can't agree more.
By the way. Is it possible to have a vertical trade lane? (i.e. orthogonal to the plane). It would be better to let existing systems sprawl vertically than add countless more just for the purpose of placing guard bases somewhere. That could add some value. I recall few systems that look better from above/below the plane.
Feel free to PM me regarding any grammar/spelling/other language mistakes I have made in my posts.