AFP/OD Round Robin oddity

Hey all, got a good one for ya. I have an xsan setup that is going to serve multiple purposes, one of which being user directory storage. So, I have a Volume mounted on two machines, call them udata1 and udata2, and a folder on that volume called Users. Both machines are set to share the folder users, and on one of the machines (udata1), I added that share to the Directory as a User Directory location. Then, I set up DNS to do a round robin between udata1 and udata2. We'll call that main DNS entry udata. So now, if I ping udata from several different hosts, some get a response from udata1, some from udata2. good! I then went into WGM, and in inspector, changed the user directory mount from udata1 to udata (I changed it under mounts, and changed the record name, cn, and the afp uri under VFSOpts). Now I see the option to have my user directory on udata. Great. I set that, tell it to make my home directory, and save. Then I try to log in to udata in the finder, it gives me udata2 (okay, that's fine)... hmmm... it only shows the option to mount Users. So I try creating the home folder again. Nothing. Checking the volume on the servers reveals that the home directory isn't being created. So, what's the scoop? Does the OD server not know how to connect to udata to create the home folder? Doesn't the OD server just tell the AFP server to create the home directory? Is there a way I can tell the OD server to always use udata1 or udata2 to handle creation of directories, yet all users still use the round robin? Future plans, once this is working, are to implement ipfailover, and such. So I need to get this going before I can move on to that. Thanks!