That's kind of exactly how I felt last week, right down to the awesome arc, then bam, back to the bleach formula.This week was a followup of meh. However, the ending made it all worth while, and I'm really looking forward to next week again.
Edit: I only read your first paragraph before I replied. After writing mine, I saw your Zaraki comment, now I'm weirded out. I like the way you think too.