Ok to switch from Crypt to Shadow Password?

Hello all -- I am happily running Leopard Server and installing MacPorts 1.6.0. Some of the ports install users in the local directory domain (with Leopard Apple has officially done away with NetInfo by the way). There is an option using Workgroup Manager -- a GUI tool only bundled by Apple with Mac OS X Server, to change the password type of local directory domain users (for example, the user "ldap" installed by MacPorts as part of the openldap port) from crypt to Shadow Password. Has anyone ever tried this and if so are there any reasons not to switch from crypt to Shadow Password? Thank, -T.M.