The setup you show is the one I used in Nullsec. It allows you to harvest up to 18000 units of each P0 commodity and produce up to 15 units of P2 per hour without overflow. You only have enough power for 9 or 10 extractor heads (depending on link length) with level 5 skills so I found it fairly easy to keep P0 extraction balanced without going over. I was averaging a bit more than 2000 unit of P2/colony/week across all my planets with very little maintenance. I never moved my colony to chase resources - simply accepted lower yield for a week or two until new resources spawned close by.
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