Stay with the AAA rate. When the AP rates were released last week, I called to see what the discount was. I have a premium site reserved at the end of July for $93 and the AP discount would have dropped that to $88... a whopping $5 discount

I then asked about the AAA discount and one was available. The AAA discounted rate was $79.05... a much better deal than the AP rate was.
BTW, the AAA rate for the August "value" season for a Premium campsite is $57.60 per night. I'm hoping the AP discount for dates after August 8th is more significant that what was just announced for late June and July.