The choices of rims available confuse me. 26 inch. I am a 185-190 pounder riding a blur Xc for strictly XC riding and racing. Have Hope Pro 2 hubs and DT Xc rims now (XR4 somethings?). Rims weigh approx 425 grams, non tubeless. I guess I'll go tubeless. Stans? DT? Mavic? Thanks.