I guess just to be clear, I should remind everyone that the number of stubs is very small as compared to the actual work that comes out of them. For instance (and I don't know the real numbers here), for those 7500 stubs:
If the average number of GNodes/stub is 150, then you've got 45 days worth of work for your network in that group. If it's ~75 GNodes/stub, you've still got 3 weeks worth.
Can you imagine what 1M stubs would take?
TheJet