I don't have a dog in this fight, but having used it before, I wouldn't go buy it on purpose, even tho it does work, but not all that well on dirt, however, I don't see it as being the issue it has brought out on here, it isn't this big a deal, let em run it, don't run money away just because of something that is a big deal in Europe, in high dollar, big paying racing, let it alone! Bob!