The other interesting situation relevant to this discussion would be an overweight landing that required conf 3 for MISAP perf restrictions. Our SOP is to go around in conf 1+F (despite the fact that planning tables exist for missed approach climb limiting weights for a go around in conf 2). If this were to happen in the later stages of approach - at or around Vapp, one will be going around well below S speed. Obviously a situation we'd like to avoid in real life, but its no dramas in the sim.