For any questions, email mechcables@gmail.com or message /u/90N1NE on Reddit.
[connector]---------length---------////////coil length/////////-------length-------[connector]
example: [mini-b]-------2"--------////////8"/////////-------4ft-------[USB A]
In the example above, the coil would start 2 inches from the mini-B connector and would be 8 inches long. After the coil there would 4ft of straight cable, making the effective length 4ft10in (2in + 8in + 4ft = 4ft 10in)
NOTE: The maximum coil length is 13 inches