I think what I was trying to say is being misunderstood. I never said that there would be any noticable quality difference in the sound.
The only point I was trying to make is in regards to the quality of work. If people like twisting 3 strands of speaker wire togethor half assed, so be it.
I would feel much better having a professional looking job from end to end, especially if it will be concealed in a finished ceiling or wall long term. Yes, you can extend your speaker lengths by adding additional wire with no negative sound results. I would just assume people would take care to make nice twists and cover with appropriate tape or wire ends.
