Regression is always the right choice. Thanks, Reading Rambo, for enabling me.
I'm writing this Thursday night, just home from drinks with my lovely coworkers whom I'll miss dearly, so I haven't got much for you in this post. On the plus side, I will have ALL the time to comment on all of yours. In the meantime, I do have two things for you:
Cedric: "Polished it last night!"
Olivander, on Krum's wand: "Rather thicker than one usually sees ... quite rigid ..."