Help! I'm looking for suggestions for a FS XC tire, riding in the Southeast (wet, rocky), 150lb rider, looking to lighten up my 2.1 Nevegals. I'll be running Stans (non-UST wheel, FSA X300). I'm trying to decide between the 2.2 RK and 2.2 MK, supersonic/black chili. Love the Nevegal tread, hate the weight. Thanks everybody.