We are very sorry to hear about your experience with us through Viator, unfortunately, all platforms have their policies and there was not much we could have done. The reason for a smaller sail on the bigger cat is because of the wind conditions. We always check the wind conditions before deciding on the sail sizes for the day. This is for a better experience while you are out there. If the winds are low, you will have a different experience with the bigger sail. But this all depends on the time of the day and the wind conditions. We hope to serve you in the future again when you visit One Happy Island.