True.
But I used to manage -current since 8 and I'm really happy with it.
It's easy right now to just reinstall everything and be happy (?) but I'm trying to learn out of problem ...
I have 9-current on ufs on another machine and I'm able to track it successfully (having issues too).
This problem is about my poor knowledge of ZFS... but, look, nobody knows too!
The worse thing now is that I cannot wait for newer src and try again: "access denied"