A few things i found useful:
Put the eggs in [EDT: Topless, cardboard, to allow for airflow] cartons and tilt the cartons to turn them. It's much easier. You can also rotate the cartons so that different ends are closer to the heat source, so your chicks bake evenly.
Put rocks or water-bottles inside the incubator. They're heat sinks and will make it so that the incubator doesn't change temp so quickly.
Hope this helps!