AP discount on park tickets?

[laughinplace199]

I bought Seasonal AP's for myself and one of my sons for our trip next month. Now my other son has decided to join us. If I wait until we arrive to buy his 4 day park to park ticket, does having a Seasonal AP get me any type of discount on his ticket? If not, I'll just buy it now.

 

[laughinplace199]

Never mind - I found the answer. 10% off when purchased at front gate.