Last night I was checking tachometers on the predator class when they came off of the track. I have not been putting them on the stand to check the RPM unless they do not have a tack on them. I was informed by a gentleman that races in the southern part of the United States at different race tracks that people are now starting to cheat the tack. That would mean that each time we have to put the cart on the stand to check the RPM 5500 limit. Is there anyone out there that knows any truth to this.