ArenaEnemyFrame1CastingBar behaviour

[Spyro]

Hi.

I want to attach the cast bars of Blizzard's Arena Frames to my Gladius. I'm ONLY interested in the cast bars, so I want to hide the rest of Blizzard's Arena Frames.

But I have a problem: I can ONLY see ArenaEnemyFrame1CastingBar (castbar's frame) when ArenaEnemyFrame1 (enemy's frame) is also visible. If I hide ArenaEnemyFrame1, ArenaEnemyFrame1CastingBar also hides itselfs, but I want to see ONLY ArenaEnemyFrame1CastingBar (having ArenaEnemyFrame1 hidden). As an informative detail, they have the same behaviour with SetScale(), if I change the scale of ArenaEnemyFrame1, the scale of ArenaEnemyFrame1CastingBar also changes.

How can I "break" the relation between these 2 frames?