Replying to Mounting Kartel 98

Im planning on copping a pair of kartel 98s to be used almost solely in the park aside from an occasional groomer run here and there. I have read that the suggested is -4 / -4.5 cm from true center. That just seems to far back for the park. I am currently on true center mounted filthy riches, which I believe is the same camber and rocker profile...would mounting true center on the Kartels be a bad idea? There's no way I am going -4, but -1 or -2 maybe, I am just worried about an awkward swing weight. Help is much appreciated