Garlic: Questions

We've done really well with garlic each year. I've always harvested near fall—my friends encouraged me to harvest earlier. This year, I am experimenting: I pulled one row early, one when they'd begun to turn brown at the edges...and the rest I will harvest in September (when I plant again for next year). I am eager to see how the flavors compare. Anyone have any thoughts and ideas on this? 

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