cp is correct.
Lowers/CSU on 2012 onwards SID/Reba are identical. Weight difference on SID is from:
Drilled bushings, transfer rather than vinyl decals, butted alu airshaft (steel reba) and 1 piece lighter topcap.
Also the DNA RLT cart is slightly lighter than the standard Moco one.
In terms of damping difference not a massive amount – main difference is that the Moco DNA SID will have dual flow rather than single flow rebound damping in the Reba giving slightly more controlled/improved rebound damping.