Any mod that connects to a machine with alligator clips is a bad idea.
Not that the mod itself is bad, but alligator clips can move when the machine is moved or vibrates.
I have seen some mods at various locations with alligator clips for connections and it makes me nervous that people would actually use it that way on a permanent basis.
All it takes is one little short on a circuit and you have an issue that could be more than just a fuse.
Just my friendly advice.