User blog comment:B214/Volume 23 discussion blog/@comment-77.188.219.183-20170424022727/@comment-31137559-20170424134438

@Bennia I think you're confusing surpassing with being stronger. All that was said that Cardinal Crimson Promotion surpassed Juggernaut Drive. It never said that form was stronger than Juggernaut Drive. First, Issei wouldn't go berserk from using Cardinal Crimson Promotion. Two, his stamina was depleted from using it instead of his life force. Three, he wouldn't die from using it.

Juggernaut Drive was a form that could put the possessors on par with the Satans and gods. The possessors would go berserk and rampage and die from using it. A final trump card. It's not surprising that it's stronger than Cardinal Crimson Promotion. We will never know how strong Issei in Juggernaut Drive would have been because he went into an incomplete form in Volume 6. Right now the power of Cardinal Crimson Promotion is almost as strong as Juggernaut Drive I would say.

Issei went on a different path and found something different to Juggernaut Drive. Well Vali survived Juggernaut Drive and created an improved, refined, and enhanced version of it which is Empireo Juggernaut Overdrive. Where he has no problem of eventually going berserk, where he reduced his stamina and demonic power consumption(although it was still immense), and sealed off the thoughts of the past possessors. It surpasses Juggernaut Drive in every way. Cardinal Crimson Promotion surpassed it because Vali could only maintain that form for only a little while before running out of stamina and demonic powers.