Yep you will always have cheaters in any kind of racing but the thing about Predators is that their quality control is poor enough that if you buy 4 of them, one will be exceptionally strong, another not so much, and the other two will do all they were built to do- turn your rototiller 3650 rpm for 90 days (then warranty expires). The differences in stock performance leaves you with a couple choices. Keep buying them until you get a strong one, or do what you can to keep up. I wasnt in karting when the clone was first produced, were they pretty much equal right out of the box?