Watching the replay of Cyprus tonight it occured to me that several cars rolled and restarted their engines either still on their side or even on their roof. These cars obviously do not have a fuel pump inertia switch like a road car. Have any of you removed your inertia switches? If so why? Does the in-car master kill switch eliminate the need for the "automatic" stock inertia switch? Should I just leave well enough alone and worry about more important things?