User blog comment:B214/Volume 22 spoilers/@comment-78.8.41.88-20161017150638/@comment-1359322-20161018063221

@Sky, can you really call it full potential when it's not using everything it has?

Well to me the CCQ is more to Issei's full potential as a BG user than Ddraig's full potential.

After CCQ, you would notice that majority of Issei's power-up no longer came from himself, the Wyvern came from Albion, the DxD came from Ophis. Yeah the CCQ originated from the Pawn Pieces but the Pawn Pieces are part of Issei's power like the BG. Wyvern and CCQ aren't Issei's power or the BG's one.