Stan V. Smith wrote, in part:

>We named our lists (three of them with >100 on each) before we knew of the -L
>convention.
>
>Is the ANY way to change the name of thie lists, adding a -L, from LISTNAME
>to LISTNAME-L without out creating havoc?
>

You might consider adding the following to each list configuration:

   * List-ID= TheListName-L

and adding appropriate "aliases" as you normally would for a new list.
 Now either name can be used for the list.  You might do this on a test
list just to see the exact effect.      cheers, wayne