Processing order of Folder Redirection by group membership

No doubt this has been asked and answered before, but I can'f find it:

We use folder redirection in group policy to redirect user's "My Documents" to a network share.  If a user is in group A, their "My Documents" is redirected to share X, if they are in group B it is redirected to share Y.

1. It appears that if a user is in more than one security group affected by in the redirection policy (eg they are in group A *and* group B) their "My Documents" is redirected according to the alphabetical precedence of their group membership (eg they are mapped to the group A share).  Is this the case?

2. Is it possible to alter the processing order of this policy, or do I have to restrict users under this policy to one security group membership?
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You Might just have to make a New Group Just for My Doc Redirection, Anyone geting directed to share X make a Group and add them to MyDocX Group or somthing similar and add the users to the group.  Then in My Doc redirecton Change the groups to MyDocX, MyDocY, etc..

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Windows 2000

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