then, for each explosion step, you do an arrangement?
For an explosion, you could have 20 or more arrangements?
My opinion is that you use arrangement in an extreme manner.
We use arrangements for an explosion on our drawings, yes in our "Design Intent" assemblies, we have many different arrangements. The design intent assembly controls many different type of drawings for us. This would be our 115% assembly if you will. We started this back in the I-Deas days with configurations. The NX arrangements still does not have all of the functionality that the old I-Deas configurations had.
This is just one way of doing things. Like NX more than one way to get stuff accomplished.