hmmm if it melts before the wire insulation it means..ding ding its setting on something to hot for either not only that but i would rather have protection on the wire. i have never seen any wire state "loomless wire" would you rather have a gash in your loom or insulator? and if you are one of those guys who uses black tape and or says turn the wire around so it cant touch metal (where it got gashed to begin with dont reply lol)