Nice!! It seems that the general consensus is that the shape of a "wine bottle" is preferred but trying to calculate that shape for needs is ridiculous. So instead, the goal would seem to be find the total area required for a port and create that same area with the use of a bowtie or kidney bean shape
You better take pictures and provide feedback! Maybe a a/b comparison with the box it's coming out of? Sealed generally has the best OVERALL results and whatever it lacks is usually made up through cabin gain. But you can easily lose a lot of efficiency and output. I think the best part of this would be fixing phase issues. The charts look VERY promising
