If anyone is still having trouble getting tight even wraps of clapton you can try the pump valve.
You thread your loose end through the side hole and you can keep a nice tight hold of the wire against the shaft of the valve which will keep the claptons tight and will pretty much run itself along your base wire.
You thread your loose end through the side hole and you can keep a nice tight hold of the wire against the shaft of the valve which will keep the claptons tight and will pretty much run itself along your base wire.