IMPORTANT TIP - Furl the sail when the wind increases
More Sail does not always equal more speed. A boat can only go through the water so fast, once the wind increases over 18 knots the Islands will become over powered and actually slow down as the additional force of the wind causes the hulls to dig into the water. Roll the sail up at least one full turn and you will find your Hobie Island will feel easier to sail and will perform better. Excessive amounts of sail area will result in the leeward hull(the hull away from the wind) digging into the water. This will place additional pressure on the sheer pin. The most important point to remember with any sailing boat is to reduce the sail area as the wind gets stronger. With the Islands it is vey simple to pull the sail furling line and roll the sail up.
IMPORTANT TIP - Check your sheer bolts
The Islands have plastic sheer bolts that are designed to give way in the event of a collision to protect other parts of the Island. They connect the bar that holds the AMA out and clip0s to the hull. The sheer bolt is the plastic bolt that connects the bar to the am. It is import to replace these if you have had any impacts with the hulls, no matter how small. There is a spare pair on the boat. If in any doubt, change it.