Wire length - too long or doesn't matter?

[suicideneil]

Technically speaking if the wires arent getting warm, then the length isnt hurting anything by causing resistance or voltage drop (not not noticeably at any rate I figure).

Visually though, yeah, looks like spaghetti on your truck I would say go ahead and shorten the leads as required- less mess and less loose wire flopping around that might get caught on something and damaged- I've worn through a wire once when it caught on the spur, so its definately worth doing if you are happy to and good with an iron.

Looking at the pics, seems you just need to shorten the series harness really, and that should make a big difference- my parallel harness is just plugs forming a T, no extra wire except whats on the batts to start with.