HDD and the DDP?

[loriandmatt]

ok, i know that i can use 2 TS credits to pay for the HDD, but i am not sure how the gratuity would work. on the new plan gratuity is not included - however the price of the HDD indicates that it includes gratuity.

when i am at the HDD and using the DDP, do i have to tip seperately? on top of the 18% they already say they have factored into the price of the show?

i am lost on this one folks! help!