You start off with 4 oz of flour and 4 oz of water which equals 8 oz by weight. The next day you say to discard half of the starter, 4 oz, but then you add another 8 oz which equals 12 oz. Therefore you are increasing the total size of the starter by 4 oz with each feeding. This may be necessary for creating enough for using, but shouldn't you just be adding 2 oz of flour and 2 oz of water each feeding to maintain it at 8 oz indefinitely, or only 4 oz as you state at the end? Thanks.

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