I was looking through the MM website just now and noticed that they have a fifth cage design available, the Spyder: https://www.maturemetal.com/test/the-dungeon/ I haven’t seen any announcement here about it. I think they’re coming back from vacation soon so hopefully some lucky person will be able to share their first impressions in a few weeks.
I like the look of it. May consider one this spring, just a matter of determining if I can come up with a reason to replace my QK.