they aren't the most secure connection and you run a higher risk of overloading a vehicle circuit or shorting something out if that metal hits something. that and to do it properly you need to make sure you hook up to the correct side of the fuse which not everyone does. if you get the wrong side of the fuse then you aren't actually using the fuse.
2013 F150 4x4 SCrew XLT 5.0L
Midwest Crew #22
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