R2 or R5 CMM?
So I bought a bundle of the Shang Chi crystals and unfortunately did not pull him, but I still won in a big way and finally duped my 5* NF and 5* Doom in the 5 crystals. My question is since I finally duped NF and he is R5 I want to rank up CMM. I have her as a5* duped sig 60 and a 6* unduped. Should I go ahead and rank up the 6* even unduped?