[apalrd]

We have had no issues with properly crimped insulated spade connectors and insulated fork connectors, using a non-racheted crimper.

We do occasionally crimp one improperly, and we replace it if that happens.

We also always zip tie the wire down near each connection so it can't wiggle or be stressed. If that is impossible we will loop the wires and zip tie them to each other so the connector is not stressed.

While it is true that they will fail in automotive applications, those are under significantly more vibration for significantly longer used lifetime than FRC robots. We measure our robots life in hours, not hundreds of thousands of miles.

We usually use only yellow and blue colors by wire gauge, since we don't use any wire smaller than 18awg. We have used red in the past for victor fans, but for anything that small it's probably a signal wire, which we will either solder or crimp in a PWM-style header.