I have used prop nuts for many years. I generally use ones made by Harry Higley. To use one just remove your starter cone. Turn it around and reinstall it. The small hole will be facing outwards. You are now ready to start a nut equipped engine. I feel they are safer and just plain easier than spinners.

I agree whole heartedley with the above poster on inserts. The inserts on Hobbico and the like starters are really kind of poor. Get a Sullivan insert. They come in different colours for different compunds. I like the white ones myself. I have 2 starters with them in. They have never given me problems. The one I have set up for spinners does not chew up plastic spinners. They are well worth the cost.

Mark Shuman