Originally Posted by 67GMC
I've also seen a fair bit of poor soldering that causes sharp points that poke through the insulation and cause issues.
This is a good point for anything soldered and wrapped with shrink tube or electrical tape. Often the solder creates these little peaks that poke through, or just a bit of the wire ends up poking out.
Something I started doing is after soldering a joint, I take some pliers and crimp the soldered joint all the way around. This flattens out any poky peaks so they