Also a note on how the nodes repop...
In ARR zones, there are typically 4 nodes, and each node will repop after you hit two other nodes.  So if you rotate all four nodes, it looks like this:
	Code:
	         A              B              C              D
A  B    ==>    _  B    ==>    _  _    ==>    A  B    ==>    A  B
C  D           C  D           C  D           _  D           C  _
  However, from HW onward, both nodes in a pair will repop after you hit one node in each of the other two pairs, so the repops look like this:
	Code:
	           A                B                C
A1  B1    ==>    __  B1    ==>    __  __    ==>    A1  __
A2  B2           __  B2           __  __           A2  __
  C1               C1               C1               __
  C2               C2               C2               __
  Both nodes in a pair count as one when triggering repops, so if you want to repop a specific node for some reason, you can hit just one node in each pair.
	Code:
	           A                B                C
A1  B1    ==>    __  B1    ==>    __  __    ==>    A1  __
A2  B2           __  B2           __  B2           A2  B2
  C1               C1               C1               __
  C2               C2               C2               C2
  
  
 A                B                C
==>    __  B1    ==>    __  __    ==>    A1  __
       __  B2           __  B2           A2  B2
         __               C1               __
         C2               C2               C2
  You might find this useful if farming Ephemeral nodes.