Hi Geoff,
I know this post is two years old. Just curious though - did Jeff's article resolve the "pool" issue you were encountering? I'm up against the same thing, on an LCS 2005 installation that didn't go so well. I thought I removed it, and installed on another server. But that one keeps bombing, saying the pool already exists. And I have no way of deactivating the original server, as LCS was already removed from it.
I was hoping to completely remove it, from both servers, but apparently the pool (or a reference to it) still exists somewhere.
Thanks!