AP rate and allotted room info

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If I buy an AP for a June trip, how many rooms can I get the AP discount with my AP? What if my hubby gets one too? Can he get more rooms on the discount? Anyone know when the summer AP discounts (if they even have them) will come out? I see on Mousesavers that the spring one covers through June 15 but we will be there the next weekend. What is the typical discount for rooms in June for AP holders?? HELP! It's been years since I had an AP and I'm out of the loop!