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it looks like there's a wee bit of confusion on what's greater/smaller than what but I'll leave that for you to manipulate. This solution will iterate ONLY ONCE through each table which will not confuse the cursors and will save you 10 million iterations(from loop in a loop iteration). Using a dictionary lookup is so fast it's considered 'free'. So populate ...


You need to nest your search cursor loops to iterate through both at the same time, while relating the rows in some way (so arcpy knows when it is at the right one, and will stop looping to compare the value). Luckily you've got those matching ID fields already. This should get you started comparing the area values. Let me know if it doesn't run or I've ...

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