Additional tips and information regarding rsync is available from the official rsync web page.
In order for rsync to operate as required it may be necessary to compile rsync specifically for your system(s). When you compile rsync there are are a variety of patches and options available. The links below provide additional information with regards the setup and compilation of rsync.
If you have tips which you believe may be of interest to LBackup users, please send an email to the LBackup discussion mailing list.
If you are having problems with rync then the following list of links may be of assistance.