The new rating is supposed to replace the old rating.
@Doctor Gemini
Arc #271637 - Welcome to M.A.G.I. - An alternative first story arc for magic origin heroes. At Hero Registration you heard the jokes about Azuria always losing things. When she loses the entire M.A.G.I. vault, you are chosen to find it.
Heyo, folks. I just had a quick question about the MA rating system. If I give an arc two stars then play it again a week later and give it four stars, will the two star rating be replaced with the new rating or will it just average out? I re-play arcs I've given two stars or lower upon request if an author contacts me and says he/she've made changes but I'm unsure of whether or not the new rating helps at all.