Our team recently attended another tournament and two of our robots used twist-ties to help secure wire connections (such as from the motor wire to a motor controller wire). However, during inspection, the inspector sent us back to replace these twist-ties with zip-ties as he believed that they were being used illegally (this event made us redo the entire cable management system on both robots right before the competition).
According to rule R7 k (if your reading on their mobile application) or rule R7 l (if your reading the PDF document):
The reason we use, or we used, twist-ties instead of zip-ties is because we find that the zip-ties apply stress on the wire headers and the pins inside of them (they push them apart) eventually degrading the quality of the connection.
I just wanted some clarification and know if using twist-ties, to make sure wire connections do not fall apart, “is serving a function beyond protecting and managing cables” (Rule R7 k).