OK, so this has been an extended play with the magic knife (as it was named by my wife, only partially ironically), and
@benhendy's generosity has allowed me to learn a couple of things.
1) I still think 240 is too much knife for me. Even a gorgeous, easy-to-hold, beautifully-balanced knife like this one.
2) I don't need a knife this good. It's a mismatch in terms of quality and skill - even a run-of-the-mill Mazaki would be plenty for me
I also don't use it enough - we generally eat two meals a day, one of which is a standard breakfast, so it just doesn't get used enough. I've been scrambling for opportunities to make the most of it while I have it.
2a) which is not to say that I don't WANT a knife this good, but realistically, it's wasted on me.
All up, a really fun time with it, and a great learning experience, but I think it's time to send it back before I get too attached to it, 240 or not