Synchronising HDs and Permission Issues: Chronosync!

Ever since it came out, I used Synk to synchronise my three Harddisks (presently all Mac OS X), one on a Powerbook, one on a desktop G4 and, lastly, one over an SSH Tunnel. Synk started as shareware, but now it is a free download.
Synk has always worked perfectly, and I mean exactly that, until recently, maybe, because I upgraded to OS X 10.2. Some time ago, Synk refused to replace files on the ‘other’ HD.
I checked the permissions, but they were all set correctly, I checked the Synk preferences, nothing wrong here.
After a few weeks, I got desparate enough to switch to
FoldersSynchroniser X Lite (USD 20). That was a mistake. It could not top Synk. FoldersSynchroniser presented me with a list of hundreds of files for synchronisation (which just couldn’t be right), and when I picked a smaller directory to synchronise it failed to replace the files on the other HD. (I could have known because the demo-version is so challenged that it did not allow any real experimentation: it is limited to a small volume of files, far smaller than the directories I want to synchronise.)
Now I use
Chronosync (USD 30), and this works flawlessly. It does all the things Synk used to do, such as a preview synchronisation that allows the user to chose for each individual file whether or not to replace it. It can even tell you when both files at either end of the back-up have been modified. On top, Chronosync also allows you to put synchronisations in a time schedule (backing up at night..). I do not use that, but, well, if you have a use for that, it is there. And much more.

Apparently, Synk 5 is on its way, and I am sure I will try it out, as and when, but for now I advise all who experience the same sort of trouble to switch to Chronosync.