exchange 2007 Public folder migration

Hi there,

We have 3 exchange 2007 PF servers and want to migrate it to 3 exchange 2010 PF servers

1) Added the replicas to 3 exchange 2010 PF servers

2) replication done, can we move replicas from

  a)Exchange A 2007 PF server to exchange A 2010 PF server

 b) Exchange B 2007 PF server to Exchange B 2010 PF server

C) Exchange C 2007 PF server to Exchange C 2010 PF server

3) remove exchange 2007 server

Please let me know if i miss anything

Many thanks

David