Booked Cool Runnings catamaran cruise during AOS cruise?

I would like to book the half day lunch catamaran cruise with Cool Runnings. They advised us to be at the dock by 9 however the Royal Caribbean rep said we won't be getting off the ship until possibly 9:30. Cool Runnings is saying they looked it up and AOS docks at 8. They mentioned they won't wait too long for us. Has anyone had this experience before? I don't want to miss our excursion so wondering if I should book another one.

We were just on AOS and we booked a catamaran tour through Silver Moon. We had plenty of time to get there before our pick-up time of 8:30.

Depending on wheat you're looking for, check out Silver Moon. We saw the Cool Runnings boat while we were there and while it looked really nice, it had a lot more people on it than our cat. Silver Moon limits their trips to 12 people, which we really liked.