The first comic: #788 Bleach
I've finished reading the first big arc, moving on to the second to get some impression of it. It's become a fun enough read that I wanted to go on anyway, but it shows how these longer arcs can be a problem when it ends (and especially when they don't really overlap). Without spoiling it, the power issue isn't as big a problem - the jumps don't need to be as big because of The Things That Happened.
However, it's a bit of a downer. You have everything working together and after that there's nothing. About fourty chapters later, some of it came back, but it's sad and slow. Bleach embraces it, making it part of the character, but there's clearly a struggle to bring it back in.
I'm close to the end now, at least as far as I can get. It's starting to feel like I'm getting to the point where a switch would be welcome though. Soon enough!