I have the InoKinetic cables and it was a big improvement over the OEM cables; My cables were binding pretty bad though. I can't give you a comparison since I don't have any experience with new OEM cables or the other cable set you mentioned. I also replaced the shift assembly with the InoKinetic one and added the LETSLA linkage at the transmission at the same time. My opinion is this combination gives very acceptable shift performance and feel now. Best regards...
06 Lotus Elise: Ardent Red, Sport+Touring, ShiftR111, S111 TransCables, LETSLA, Driving lights
02 Honda S2000: Spa yellow, Berk Hi-flow Cat, Alpine head unit, Focal speakers
09 Honda Civic EX Coupe: Stock winter bomber