I'm sorry but I just don't agree. I don't want to make a big deal of this, I really don't. All I am trying to say is that round corners aren't the only answer, they're just the answer you found. I don't get it why you try to make like your horns defy the laws of physics or like you had found new properties. It is good enough that your designs work, no need to dilute the point by saying something ridiculous. Why do you insist that Huygen is wrong? Can't you see that wave travel through your horns acts just like Huygen says it does?