I run it at 1.25~1.27M will little issue.... the real big thing about it is the equipts
the difference between a "1.2M" and a "1.25M" is kind of misleading because that extra 50k might be defense. HP inflates the TP and makes you stressed out when you think you should be preforming better than you are. Atk and def are the key stats... and thus level your equipts..