How to Change the COGS Account for IR/ISO with CST: Transfer Pricing Option = Yes, Price As Incoming

Dear Cost Community,

Trying to verify which COGS workflow is used for the IR/ISO Internal Order.  The R11i literature seems to indicate that the Inventory Cost of Goods Sold Account Generator Workflow is the correct workflow to use to modify the COGS Account for IR/ISO Intransit Shipment (Int Order Intr Ship) transactions ( see MOS document Intercompany COGS not selected with CST: Transfer Pricing Option = 'Yes' (DOC ID 1062580.1).  But the Release 12 position is not clear to me.  Can someone verify which workflow to modify?  Inventory Cost of Goods Sold Account Generator Workflow or OM: Generate Cost of Goods Sold Account Workflow?  Would prefer to use a workflow as then the material account distribution inquiry screens and reports will agree with subledger accounting.  As a fall-back position, can use SLA if necessary.