I had read on the internet (so it must be true) that it's actually very difficult to achieve such a blunt profile on a rim- the spokes tend to pull through very easily.
Hence the Chinese factories make theirs a little less blunt than Zipp and HED so as to avoid having to use the same manufacturing process as them, with (presumably) approximately the same sort of costs.
The direction of the rim wall is near perpendicular to the direction of spoke tension. So its going to need some clever reinforcement I guess.
Although some chinese open mold rims, have quoted near unusably low max spoke tensions. Pressumably in an effort to get around this. This is why I went with HongFu, despite a small cost penalty. I like my spokes, tioght like a tiger.
The direction of the rim wall is near perpendicular to the direction of spoke tension. So its going to need some clever reinforcement I guess.
Although some chinese open mold rims, have quoted near unusably low max spoke tensions. Pressumably in an effort to get around this. This is why I went with HongFu, despite a small cost penalty. I like my spokes, tioght like a tiger.