I have the same wheelset as the OP and I keep on thinking of building something lighter but why when the wheels never go wrong.
Muddyfunster hubs don't giove you speed. Even a rough hub has a coefficent of rolling friction 100 times less than a the tyre on the gorund. I think njee by be underwheelmed by the price for the gain over a much cheaper hub. CK hubs are very nice too look at though.
I think I'd like a set of Stan's crest rims with DT 240 hubs for CX riding on DB spokes. the cost puts me off I can buy at trade.
