Hi John,
I saw the Oceanus cloth in a sail loft in NZ, being used to make sails for a square rigger. This was in one of the heavier weights, and was narrow, to make it "look right". However, if the lighter weights are as wide as 64", similar to the Odyssey and Mustang cloth, it must be a good bet for junk sails, though I've no first hand experience.
Also, Heathcoat Fabrics are still making Clipper Canvas, a very similar product. I've seen this in the roll, at a sailmakers, but have not seen a finished sail. The handling properties were as you quote for Oceanus, very soft and easy to furl.