The reason you don't get a time to intersection in LaunchMFD is because there isn't one, when your target is at a lower eq Inc than your lattitude.
Ah... that makes sense. The satellite never crosses the launch site, so there is no intersection.
Understandable. Still, I would prefer a "Best time to launch" countdown if nothing else. Otherwise, it seems as though I need to load the scenario, fast forward until the RInc is at the lowest point, pause the simulation, write down the time, exit Orbiter, reload the scenario, then fast forward back to the time I'd written down -300 seconds. A bit tedious.
At any rate, thanks again for the replies.