I'll add a little bit I think may have been missed by PP.

I believe there is a maximum for the value they subtract for a annual pass, that's why most of the time it's said it can only be done with a day ticket (with the value printed on it), I believe the maximum was 100 euro's or something, but it's not a widely known fact an a 2 day ticket is probably already more expensive, so I don't know the exact amount and most of the time it's referred to as a day ticket.
You can eat at Hunter grill without a meal plan, you can even eat there without staying in the hotel. Do make a reservation, I wanted to maybe eat there in September (Run weekend) and the Saturday was already completely booked (for a group of 4).
You can't add a meal plan at check-in, it has to be done at least 3 days before you arrive (with a normal booking), but it's not really good value (unless you get it for free) anyway, so pick where you want to eat and make reservations.
I don't believe Sequoia Lodge has standard rooms with king beds (New Port Bay does), only the suits, so all rooms have 2 queens. Also no fridge or mini bar, unless you stay club level