I opted it in 18 & will opt it in CE19 too... Many people said to me that i shouldnot go for it but I decided,,, With 10 days non serious study, 3/4 hours study before paper, although there was a holiday in it, with Alot of blunders in paper like (I solved numerical but didnt wrote it's answer, I started equation but didnot completed it) I got 116... Now Everyone says No donot do change... It is fine... & Everyone was discusssing Scoring or not scoring... I opted USA histroy on the base of Scoring trend... I had not any intrest in it... So I got flunked in it... Your intrest does matter...