original iq for me allows me to play on little more medium and heavy conditions.one thing i like about this ball is reads the mids like crazy but so smooth down lane reation no skid pop at all with this ball.very good ball to play on those tougher land conditions,havent changed the surface yet just might need to bring back to box finish after a couple of games seems to shine up quick so keep that in mine bowlers.overall this ball is awsome great ball to have in the bag