While I'm not an expert on plastic coverings I have used them since 1966. The new Monokote is not as good as the old as has been said frequently. But it still is useful if handled a little differently. Make sure that you pull the covering tight as you tack it down to the surface and make sure that you have the complete perimiter attached before you shrink anything. heat should only be the amount needed to shrink and no more. You use the maximum amount of heat to shrink and the plastic has no memory it wont rebound out any. When it puckers or loosens it probably will disappoint you with its attaching or shrinking abilities. Wing tips are not difficult if you handle them in small sections and do not slit it up to the wingtip. Guaranteed to tear if you pull on it too hard. I'm showing some models that are covered with the new stuff.