Syncronize IIS servers in a web farm to enable ETags

It’s known that on web Farm using  of eTags under IIS doesn’t work properly unless all servers are synchronized.
http://support.microsoft.com/?id=922733 suggests to
synchronize the ETag values on all the Web servers that are running IIS using Mdutil.exe that should be extracted from Windows CD

http://developer.yahoo.com/blogs/ydn/posts/2007/07/high_performanc_11/#comment-14835
suggests to use iiscnfg.vbs script (with the /copy switch) to keep cluster configuration synced up, this keeps the MDETAGCHANGENUMBER synced up too.
 
 
Finally I found extended recommendations how to synchronze IIS databases in
http://weblogs.asp.net/owscott/archive/2006/06/07/IISCnfg.vbs—IIS-Settings-Replication.aspx
It has customized MetabaseMerge.bat script, that seems the most appropriate for the job.