Interunit transfers in Inventory

We are trying to create a requisition to fill an inventory BU from another one, when we run out of materials and need it quickly.  We have created the transaction rules and set up.  The inventory is creating an 031 and 022 transaction, but is creating a 300 for the source at the full value and it seems backwards crediting expense.  We are using actual cost and the actual cost in both BU's is the same (ex: 68 in both source and destination).  I would think there would be no 300 transaction at all.  Any ideas on why this is happening?