We have a freight charge policy that is not written in stone. Generally we chargee freight if the order is over a certain dollar value, but we do not charge freight on any backorders no matter what the value of the original ordr. But we do charge freight for certain customers in a small number of customer classes. And then there are customers that are never charged freight (what would a rule be without exceptions )
For all the above reasons, it would be helpful if after entering the line items in SO-A, a window would pop up allowing us to change the FOB field. As it is, we have to go back to the header to do so, resulting in a lot more keystrokes before saving the SO. Not to mention the fact that we have to go back to the line items before saving to avoid being thrown out after trying to enter the next order (see this prolem discussed elsewhere)

In our case freight is not added to the product price, it is always added as a true freight charge