> Zip ties have an annoying square head, and the tag end is often cut off not quite flush with the head, giving a great jagged edge to lacerate some poor mechanic's hand.

In decades past my hands were cut many times in data center racks because of this. Fortunately, zip ties have gone out of fashion and everyone uses Velcro now. The advantages of Velcro over zip ties in data center racks:

- Even pressure and no risk of over tightening

- Trivial to re-work when cables are added/removed

- No more cut hands!

The only downside is that sometimes the loops can be too loose and slide down to the next loop. This is especially common when very few cables are being bound and the Velcro structure does not want to conform to such a tight radius.