[EXIM] using $quote or $original_local_part in smartuser?

Philip suggested a while ago:

    new_address = ${quote:${local_part}}@???

as the answer to a smartuser issue where quotes were stripped on a local
part of the form "a*b"@domain

Would using $original_local_part without $quote be better or the same
here (or worse), given that most $local_part values will be OK?

Thanks.

-- 
Alan Thew                                       alan.thew@???
Computing Services,University of Liverpool      Fax: +44 151 794-4442

--
*** Exim information can be found at http://www.exim.org/ ***