I've given up on rebuildables, but damn if the kayfun beta isn't sexy looking. Is there a difference between the 3.1 and the 3.1 ES I've seen mentioned elsewhere?
Also, how does it compare to the Odysseus?
The Ody doesn't come close when it comes to performance. The Ithaka, on the other hand, comes very close, but I would still have to give the nod to the kayfun. In terms of ease of setup, the kayfun also wins since you don't have to bother with NR wire. They both have intricate designs and perform well. Right now I prefer the Kayfun, but that might just be the newness factor talking. Aesthetically, I like the cleaner look of the Kayfun.