Steve, I agree with much of your analysis of BTIM in your recent posts on SI. Just a miscellaneous factoid, though: a unit of FFP is typically made from about 450 mL whole blood + anticoagulant. Depending on how the unit is centrifuged, whether a platelet unit is also made, etc., you'll get 180-330 mL of plasma. Typically, the 250-330 mL plasma units are the ones that become FFP. However, I understand that the size of an FFP unit varies across the country.