thank you for the info, these rims look interesting! I might get me some as well!
As I own hope pro2 hubs as well, I wonder at what weight the full wheelset comes in?

 I would recommend it, these rims are awesome so far! I run 2.3 maxxis dhf and HR2 tyres on them and they puff out more than the dhf 2.5 tyre that came on the factory rims with tubes! It means that I can save weight by running a more narrow tyre that actually has a better foot print than the heavier, wider tyres. The carbon rims look to weigh about 300gm less each rim than a standard equivalent rim, then tubless weight savings on top of that. They were heaps lighter than my old spank spoon wheels. I seem to be able to run about 26psi in them as well without any burping etc