As in "has anyone tried to use TC's /usr/local as /usr/local in another distro"?
I suppose it would work to an extent, assuming the other distro uses libs that are compatible with TC. You would probably find that some apps will work, and some might not work.
In order to do it you would probably need to mount the tclocal directory to /usr/local using a startup script rather than /etc/fstab, since it would need to use mount --bind.
In other words, you'd set up the partition in /etc/fstab to be mounted somewhere other than /usr/local (/mnt/local, for example), and then use a startup script to bind /mnt/local/tclocal to /usr/local