That zip tie method looks simple. I got a bit more complicated and used some hose clamps, L-brackets and wood screws. Mine came out......not perfect (which is the only acceptable choice). Although I used MDPC-X which might be harder to coil? Maybe I didn't do my first coil perfect? I sure as hell did subsequent coils absolutely perfect. I used a heat gun, oven, tried 90 degrees, 120 degrees, 170 degrees and 200 degrees. 200 worked best @ 20 minutes. The beginning has two "loose" parts (coils gets a bit larger or loose) that start about one inch from device end, only last one coil, then start again about 3 inches after and again, last one coil. The rest is absolutely perfect. I mean I can pull it and it snaps back immediately. Was trying a MODO2 color scheme. I've ordered Tech=Flex and will see what I can do now with around 12hours experience in coiling cable (I redid the first cable around a dozen times just to see different methods). The coil never changed as far as the loose parts. The only difference was the springiness after reverse coiling AND heating.