User blog comment:RaijinSenshi19/Shadow VS Hero Box Openings/@comment-25600444-20150827204022/@comment-25600444-20150827215127

Hmmmmmmmmmmmm. Ah!

Think of like this Rai. You're having frustration luck, where you're technically lucky by the standards of the system but not are not personally satisfied with it.

Therefore, once that's used up, for Lord of Hundred Thunder, THEN you can tap into your personal satisfaction luck supply, obtaing the SPs and BRs and Secret YOU want!

............At least, that's my hypothesis