I myself am not high enough to have to worry about finding Grade 6 areas, however our official LS miner has hit R40 and has the ability "Lay of the Land V" and has read that "Lay of the Land VI" is received at R48. I have read other posts on other sites suggesting that there are no Grade 6 nodes at this time.

Here is my question: Do you actually get "Lay of the Land VI" at R48, and if so, why is there an ability to find nodes that don't exist??