Show Birthday to Specific Usergroups

[StoppingTime]

Hi,

So our forum is pretty strict on only permitting users of a certain age to use our forums. As a result, we've been looking for ways to help our Super Moderators/Administrators more quickly recognize overage users.

I've successfully managed to add a "birthday" field to a user's postbit (displaying only to Super Mod/Admin usergroups), regardless of whether or not a user allows their birthday publicly viewable by this code:

<if condition="is_member_of($bbuserinfo, x,y)">
<div>Birthday: $post[birthday] 
</if> </div>

When trying to add something similar to the MEMBERINFO template, however (with the $post[birthday] variable), the birthday only shows up if a member has selected it to be viewed publicly.

So my question: Is there any way to force a user's birthday/age to be displayed on the MEMBERINFO template to specific usergroups?