Flow-jagged curve outcome

 From:  possum
I have a bit of a problem here..thought someone might be able to help. I was trying to make a telephone cord that followed along a curved path. I made the cord by sweeping a circle along a helix and then tried to 'flow' the helix along the curved shape. It did not work.

What I did next was to try to flow the helix along the curve with the intention of then sweeping the circle along the result. The helix does flow along the curve but the resultant curve is a 'jagged' sawtooth sorth of curve that does not produce a smooth sweep...any help with this would be appreciated.