I had the RRO spacers on for a bit. Big waste of money IMO. I took if off and put on OME springs and shocks, plus a few extra parts. My KK corners way better than new but the ride is slightly stiffer.
2010 KK Sport, Detoures Knucklebone & backbone, smittybilt XRC 10, rigid led lights, R/L sliders & rack, cb, EMT2, R/K 15x7, OME, JBA, mopar skids & hitch, headlight covers, 4.10's and TruTracs