Design for a Universal Dome Port Hard Cap

A fellow WaterPixel user asked me if it would be possible to make a hard dome port cap for a new port. They were not comfortable with the provided neoprene cover and wanted something that would provide more protection in and out of the water. I considered it for a bit and came up with the following design for a "universal" dome port cap. It's a parametric model so a port cap can be generated from just a couple of dimensions, providing it's for a conventional dome port style. I prototyped it for a Nauticam 140mm dome port and made another version of the users 6-inch dome. I printed this in a very tough TPU with a 68-shore hardness. It's flexible but quite rigid. I used an open face grid design to avoid the typical resistance that makes removing port caps harder than necessary. A pair of clips hold the cap in place, with bungees for a more secure connection.

What do folks think of this design? I've not tested it in the water yet but will soon.

Nauticam 140mm and 6-inch dome: (the smaller part in the photos is incomplete...)