Why do they leave only every hour instead of every 30 minutes like Scheplers? And to top it off the boat was 17 minutes late leaving!!!!!!!

Different company different rules

Why don't you either go with Scheplers or ask them. How would we know. As to their being late,, Im sure they had a good reason, but you could ask them.

They actually leave within 30 min of the last boat, sometimes 45 min, sometimes longer. The real question is if this was a critical item for you, why are you not sailing with Sheplers?

Each one has their own schedule.