Did you guys ever get around to finishing the review on these? Looking at picking up a set but not buying anything Easton until they have sorted out the hubs.
I've got a few weeks on a used set of Haven carbon 29's, here are some observations…
They've revised the hub design a few times. I needed to convert the axles for my frame/fork, the cost of small parts was very reasonable, and the easton wheel peeps sent me the most recent hub guts at no charge. The hubs are a very simple design and are well made.
I used the 135mm QR end caps, and like many people, I drilled them out (super easy) to use a 10x135 through axle.
The preload adjustment threads are pretty fine, so there's a full turn of preload between "just right" and "too tight". Easy to overtighten!
I used blue lock-tite on the threads, no problems with them coming loose. I think they have solved that with the new LH preload adjusters. However, even with the pre-load over-tightened, there is a very tiny bit of slop in the rear hub. Only noticable if your watching the rotor/pad clearance while rocking the rear wheel. It could be the tolerances between the freehub and the axle, or between the axle and the end caps, etc. but it is definitely not the bearing preload. regardless, I think this would lead a lot of people to over-tighten the hubs. It is such a small amount of play it does not affect wheel stiffness, but it's enough I can see where it would lead people to over-tightening.
The stiffness of the carbon wheels is definitely a game changer.
I would expect that the spoke issues some people are having are primarily with the aluminum rims.
I'm not sure I would seek out the alu. havens, but the carbon rims are so awesome I think the carbon wheels are totally worth it if you can score a deal. I haven't seen any reports of issues with the easton carbon rims….A couple of companies offer 24h rear hubs, (DT for one), so even if the rear hub blows up and I swap it out, I'd still be into a nice carbon wheelset relatively cheap. I don't think it would be an issue to lace this rim up to another 24h hub- but so far the easton hub seems fine (just not outstanding).