Could y'all post your TA and pH numbers (your "target" pH you reach after adding acid and your "high" pH at the point you need to add acid). And also compare your readings against this chart. Though it is absolutely true that increased aeration will cause an increased outgassing of carbon dioxide and subsequent rise in pH (and therefore acid demand), it is also possible that some of you may be at too high a TA level anyway.

The easiest solution, at any aeration rate, is to lower your TA so you get into the "green" range on the aforementioned chart (some can be in the "orange" range, but this is dependent on aeration). My coloring of the chart is just based on experience from users so far and is subject to change, which is why I'm interested in your results.

Richard