EFS sharing with multiple users on network file share

OK, here goes nothing

2K8R2 DFL / 2K8R2 file server

2 test accounts both enrolled for EFS cert & file server is enabled for kerberos delegation

both accounts can encrypt files on network file share. Both accounts have local profiles on server.

question: how in the heck can access to multiple users be set up?

I have exported EFS certs for each & imported into trusted people store (also tried importing to Personal & Other People stores). I right-click file | Advanced | check 'Encrypt contents to secure data' | OK | Apply | Advanced | Details | Add | select user | OK | OK | Apply | OK... I attempt to open file with user for whom sharing was just enabled and receive "Access Denied".

If I don't get this working soon, I my leap out the window (and I'm on the fifth floor).

Oh, and I realize there are better solutions for this. The thing is that my manager disagrees.

PLEASE HELP!!!!