I'm kinda partial on this one Klint. I don't see a problem in splicing if you know what your doing. I see bad wiring all the time. I use butt splices or the in line connectors. Also use tape. I have never heat wrapped my wires though. I mean, if you want to clean things up, I would eliminate splices as much as possible. My X is a wiring mess, but I can guarantee everything works and nothing is in danger of catching on fire.....
Guess it just depends on how much effort you want to put in it.