Hi Joe,
If you can get those funky clips to work I wouldn't bother. They always fall apart on me and I figured they were for one time use. I'm more interested in seeing how to reuse them properly and the OP. If the clips arn't available I've had success with 18-2 SPT2 black wire, not the cheap 6' extension cords from Walmart. Bit of a squeeze but it can be done.
Jon