Behaviour of Reprice WF Activity

My client wishes to reprice sales order lines as of the actual ship date. To do so, we are using the WF Reprice activity with the following node attributes:

• Repricing Date: Actual Shipment Date
• Repricing Event: Line
• Honor Calculate Price Flag: No

We are trying out a few scenarios but not getting the desired results.

Scenario 1: SO line price list is no longer effective on the actual shipment date.

Client expected that the Reprice activity would re-evaluate the price list and find the new price list that is effective on the Actual Shipment Date.

Scenario 2: SO line has a modifier that is no longer effective on the actual shipment date.