Triggering the traps

[Things2do]

I use one trap to hold them both, and I keep the spare arm taped to the top of my car. That way, if I accidentally set the traps so that I can't get to the normal one or manage to bend the normal arm, I have a backup that I can use in under 5 seconds, as opposed to rewinding my car. {I've done both of those at competitions...}