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. 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
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—IIS-Settings-Replication.aspx
It has customized MetabaseMerge.bat script, that seems the most appropriate for the job.
Alternative solution is described on codeProject Synchronize file date time on multiple IIS servers and fix ETag discrepency