Current sensors use??

So what are all you guys using the current sensors for. Last year a lot of teams wanted to use current sensors although they were not included with the kit. Wondering why there was such a demand for it and what people are using it for this year.

the idea is that you have a sensor monitoring current running through the electrics so that you can have a software limit switch before the hardwired breaker trips. With a software limit switch, you can hit a button and go, reseting the limit switch, whereas you cannot reset the main breaker. it really is not a bad idea to implement.