User blog comment:B214/Volume 23 discussion blog/@comment-77.188.219.183-20170424022727/@comment-29963364-20170424061758

I actually think that I have a good idea of what the EJOD and CCP are in comparison to the JD.

[Empireo Juggernaut Overdrive]


 * Originally, Vali could use his Demonic Power to fuel the [Juggernaut Drive] for a short period, but due to the influence of the past possessors, Vali didn't have complete control over it, and would go berserk if he used it for too long. But after furthur training, he "overpowered/subjugated" the conciousness of the past possessors, making them submit to his will. This unlocked a new form that gave Vali complete control over the JD: the EJOD. But, even though the risk of going berserk is gone, the stamina & Demonic Power consumption rate is still the same, meaning Vali still can't sustain this form for long.


 * A simpler way to describe the EOJD is that it is a "tamed" JD.

[Illegal Move Triaina] & [Cardinal Crimson Promotion]


 * Issei didn't have much Demonic Power to use as an alternative power source for the JD, so if he used it, his life-force would be drained. On top of that, Issei didn't have the mental training Vali had to keep himself from going berserk. But Issei found a way to access a portion of the JD's power. By using [Promotion] on his Scale Mail, Issei could channel some of the JD's power through his Evil Pieces to enhance the armor based on which Piece he promoted to (Rook, Knight or Bishop). This is his [Illegal Move Triaina].


 * Eventually, Issei changed the views of the past possessors by giving them hope for a possible bright future. This resulted in Issei achieving the "Queen Form" of his Scale Mail, which gives him free access to the JD's power without going berserk. But unlike Vali's EJOD (which is a form with the full power of the JD), Issei is "channeling" the JD's power into his Scale Male. So he can control how much power he's channeling, reducing the stamina consumption rate, and making the form "more balanced" over-all.

Vali's EJOD is a "massive, unbalanced power-up", while Issei's CCP is an "enhanced, balanced state."

If you compare them to Super Saiyan Transformations from Dragon Ball Z & Super...

EJOD = Super Saiyan Grade 3 (a massive power-up, but is unbalanced and drains your stamina too fast).

CCP = Fully Mastered Super Saiyan (complete control over your power output, making this form more balanced and reducing stamina consumption).