So I enlightened my level 1 kanji this morning (whoo!) and I was wondering about something. Suppose that for the kanji 下 I thought the reading was さ and was greeted with a red text bar. Great. Now suppose that I was having a particularly forgetful review stretch and that I screwed it up enough times to drop it down to Apprentice.
I just recently Guru’ed the kanji 以 a few days ago. Since 下 would be Apprentice level, I would suspect that the vocab 以下 stays locked until 下 is Guru status again. Is that what happens, or is just getting something to Guru once enough to unlock all related items even if you screw it up later?