Look like great wheels. I always loved my first generation Firecrest 303s and like the 303 NSW as well. There’s a limit to how wide and low pressure I want to/need to go. I don’t feel at this point running my DR Swiss PRC 1100 wheels at 75/80 (with 26 mm tires) or my Zipp 303 NSW at a similar pressure (28 mm tires) needs much additional comfort - though I must admit I love the feel of open tubulars on both wheels. I’ve become a bit less aero-focused on wheels because I can get great flat road speed on my PRC1100 set without a bunch of weight, so they climb well. It sounds like these wheels are incredibly light! I’d love to give them a try for fun at some point.
We’re pretty lucky with all this amazing cycling tech that’s coming out. Lots of great choices out there.