I gotta agree with Semp on this one. I do strat runs all the time. Once you're at 25k just look for the big flying blob. Think about what is already at your advantage. If you see a huge dar bar slowly moving across the map, you can pretty much tell where they're going. You know that there's a 90% probability that they're going to be above 20k. On top of that, they're probably going to have to fly over radar on the way. So you know where we're at, where we're going, and how high we are.