On my Capricorn, we had a light weight silicone sprayed nylon spinnaker that developed wear holes within only a few weeks.... We had a re-enforcement patch sewn in and is all good now.

We now also have a Landenburger kite that is a little heavier material and have used it more than the Goodall and shows no sign of wear holes....... So therefore you may find that is the type of spinnaker cloth that is used.