Prevent admin from editing certain levels in membership plugin

HI, I have 5 access levels. I have given site admins the ability to edit the levels except for one of the levels. How do I prevent the level from displaying for the sub site admin? I only want the super admin to be able to see this level because it causes too much confusion for admins.
WP 3.3.1
Membership RC no globals, membership plugin activated per blog with new blog templates.