d3, I'd have to take task with the 'rely on IAS' comment - a lot of machines use ASIs that have notes saying they are unreliable below 40 KIAS, and will probably read zero below about 20 kt, so you can't put too much faith in them.
It may be a big call, but I'd say you have to use a good scan (horizon, out to the sides, peripheral vision) plus instrument trends, and the good old seat of the pants to keep the awareness alive.