Clarification on authentication notes needed

Since I want to use JSPWiki in a real production environment, I have
carefully  read the *Advanced Installation* section of
Andrews excellent notes here (
http://doc.jspwiki.org/2.4/wiki/InstallingJSPWiki#section-InstallingJSPWiki-AdvancedInstallation)
and here(
http://doc.jspwiki.org/2.4/wiki/Security#section-Security-IntegratingJSPWikiWithContainerManagedAuthentication
).

The document says that container authentication is the preferred method in
many corporate environments but it at no time warns against the use of
custom authentication. I want a KISS solution that is suitable for multi
wikis running as separate webapps on the internet.

Can I safely use Custom authentication* and not sacrifice hopes for a
high-security configuration?

Thx,
Claudia

*which looks up and validates the user's id and password against those
stored in JSPWiki's UserDatabase