If we have a fast pass for the schedule is it only the ones in the black print or can you ride at anytime boat is going?

Any time any boat.

Any boat... First come, first serve

There should have been express boats, the fast ones. So because of the number of people, they just take all.

I was told it was the Black Print only. With our return destination as we took the pirate ship over to the island, I am not sure about the Fast pass for the first leg.

Any time will do. But if you don't take the black print, then your pass is converted to a slow ride and in case of an issue, your bicycle tires will be your flotation device. Happy Sailing!