Avoid tight bends of less than 2-in. radius; smooth, gradual ones are best to protect the wire.
Clamp cables to framing with nylon cable straps, lightly secured around the cables and screwed to the framing. Never compress, crush or deform the wire.
Pull gently on cables when feeding them through holes and tight spaces. Pulling with more than 20 lbs. of force (as if you were really pulling your bootstraps tight) will distort the delicate twists and compromise the quality of signals.