Changing Default User Permissions between two users.

Hello,

I have two users on Mac OSX 10.7. Each of the users are members of the same group. What I need to do is make both users have the ability to read and write files to each other.

As per this article: http://support.apple.com/kb/HT2202

I went into: /etc/launchd-user.conf and set umask as 002.

I assumed that this would work. When I did, I logged off and logged back on and create a file in /tmp and found that it was still being created with 644.

Any advice?

Chris