okay ...
Then I need to ask about mileage/segment runs. I'm going to be 3 segments short with my current work travel plans as of 12/31. I admit I don't know anything about these runs ... am thinking about a quick FSD - DTW and back on NW on evening of 12/26, fly back early a.m. 12/26 (spend about 5+ hours at DTW), would get me 4 segments for the cost of $149 + 25,000 miles, which seems pretty reasonable. Would this be considered a mileage run?