This is one of the worst cluster sections we have found.  Interestingly,
it comes from our highly successful and small feature based network.

			     | |   |   |_|-> 1
                             | | |-|     |-> 1
                             | | | |  _|-> 4
                             | | | | | |-> 4
                             | | | |-|  _|-> 3
                             |-| |   | | |-> 3
                               | |   | | |-> 5
                               | |   |-| |    _|-> 6
                               | |     | | |-| |_|-> 3
                               | |     | | | |   |-> 8
                               | |     |-| | |-> 4
                               | |       | |      _|-> 0
                               | |       | |     | |-> 0
                               | |       | |   |-|  _|-> 3
                               | |       |-|   | | | |_|-> 5
                               | |         |   | |-|   |_|-> 6
                               | |         | |-|   |     |-> 8
                               | |         | | |   |_|-> 4
                               | |         | | |     |-> 4
                               | |         | | |_|-> 1
                               | |         |-|   |-> 1
                               | |           |  _|-> 9