Should I become a member of The MLC if some of my musical works are administered by a music publisher or adminisrator, and some are administered by me?

Songwriters, composers, and lyricists who have retained the right to register any of their own musical works with The MLC AND collect their own mechanical royalties either directly or through a business manager, accountant, lawyer or other representative/agent, should become Members of The MLC. However, they should only register the musical works which are not administered by another party with The MLC. The musical works which are administered by another party should be registered with The MLC by that party (e.g., a music publisher or administrator).