Fasst Company Torque Wrench Kit $293
Like any other threaded fastener a spoke works best when it's properly tensioned. When the pull of each spoke is equal and set to the proper torque, the wheel maintains its shape and structural integrity. When the spokes are loose it doesn't, it's as simple as that. Periodically checking the spokes solves part of the problem, but the other side of the coin is applying the correct tensioning force, or torque, to them. Like my friend Art says, "tight is tight, too tight is broken," and that's particularly true when we're discussing spokes.