What's the best (lightest ?) iron on covering for a Chrysalis?

From : Don Stackhouse

Bill, while some folks have been successful with the lightweight coverings, we've received enough reports of flutter that we are now recommending only regular weight coverings for the Chrysalis, such as Monocote, and regular weight Ultracoat and Oracover. The Chrysalis is plenty light already, so the small difference in weight is not that significant ( I can't believe I said that!).

The Chrysalis relies on the covering for torsional stiffness. We could add torsional stiffness other ways, such as the traditional balsa sheeting on the leading edge, but this would add weight and cost, and make the model much more difficult to build, particularly for beginners. Extra spars such as the turbulator spars used on other models would add drag, weight and cost ( the Chrysalis airfoils do not need turbulation). In this case a regular weight covering on a simple open structure is a better way to go.

Don Stackhouse @ DJ Aerotech