FTP doesn't follow sym links...if that doesn't bother you, you're probably OK.
If you want to tinker, try adding:
To the /etc/flexshare.conf file.
Then edit a Flexshare...you should see that you can change the default mount point (whereas, before it would be impossible to change from the default /var/flexshare/shares/<sharename>
Using this solution will provide full Flexshare compatibility, even with FTP.