I think there would have to be an asym cut. When I look at mine, there is not a bunching of material at the ends.
I was thinking that a retangle with an asym cut tapering to a blunt point has promise. The tapering could help hold the edges opener and make the hammock lay flater and more asym. This would take away from the bath tub feel of a speer.
Is that too much to ask? Girls with frikkin' lasers on their heads?
The hanger formly known as "hammock engineer".