It tests well in the lab, and performs well on the water. Since, however there are less fill threads, the weight is kept low, only just higher than the 0.5oz version. This may allow an inventory of 0.4 Ultralite, 0.6 Superlite, and a 0.75oz, especially in bigger boats, where the extra strength is a benefit. Contender 0.4oz Ultralite Very light weight, around 0.60 - 0.64 oz. Stretch is about double that of Superlite.
Porosity is high, due the lack of yarn, even with the urethane coating.
In conclusion, this could be a killer cloth when nothing else will fill. It has a good enough tear strength to survive handling, but at half the warp tensile strength, and low stretch resistance, it is more suited to under 40 feet, than a Maxi. This fabric has been around for a long time, and has fallen a little behind the competition. Weighs between 0.85 and 0.95oz, but has a fair tear resistance and low stretch. Weighs about 0.6 - 0.7oz, just a little higher on average.