And when launching the spinnaker alone, do NOT release the main sheet as you might have on a Laser 2 or other monohull. You can ease it a little bit, maybe a foot of sheet out, but instead, let the traveler way out, then bear off, then launch the spin, trim it in, then pull up the traveler to get a good ballance on the helm.

Remember, the leach tension on the mainsail is the only thing keeping your mast from bending forewards when you trim in the spin, so keep some tension on the main or risk snapping your mast. Then, as Kris said, with every gust, bear off. On the F16's, because they are so short and lack volume in the bow, you really want to be looking upwind for the next big gust, and you want to be bearing off already, just before it hits.

If you wait until it hits you and then try to bear off, your low bow will already be on the way under water, and bearing off hard will only push it under further, so be looking over your shoulder for the next puff and bear away early, or swim! The first few times you sail with the kite up raise your boards up too, that will help keep the low bow from going under, and get your weight way at the back, if it's blowing and there are waves to climb over.