Use the 'ap' command.
Complete the addition of the user on the first machine then:

Code:

ap -d user >/tmp/user.data

copy the file tmp/user.data to the rest of the machines, and on each of them:

Code:

ap -r -f /tmp/user.data

The user will have the same user profile ( not .profile) and user id on every machine along with the correct privileges and authority and groups.
You still have to copy any .profile to the various machines.