Feedback on RC's i dont have but i got a set of Fuel Injector Clinic 1100cc recently. I was also looking into RC but i got adviced to choose for a good injector once i was busy with fuel mods. After hours of search and head scratching i got down to ID or FIC. At the end i went with the FIC. The work like a charm. Very stable idle for such a big injector on such a tiny engine and on Pump Gas.