I have an 02 zx6r J model. Somebody before me put an aftermarket jet kit on it, but did it wrong, they had it on the leanest setting. After moving it richer, it runs better, but still has that "flat spot" everybody talks about. I do not know the size of the jet needle so is there an aftermarket (cheaper) version of the stock (5EI10) needle? Have you heard of other sizes used oversees (5E19-3/ 5E18-3)? By oversees, I mean not in US. Any information would be helpful, thanks. I should mention that I cannot do the bottom (richest) clip position with the shim because it won't go together.