Also, I’ve been using a mitsu-ori ‘kaban’ for about 10 years now to and from Japan and all over the world.
Anne has had hers broken in a regular case, so I would be careful.
If you pack it like Karl mentioned, it should be a-okay with the itomaki and dou out and safely on the side.
I have never had the safety blocks, but instead have always used bubble wrap and tactically placed socks and underwear. I call this “The Kmetz Method” of packing the shami.
The only place that has never opened up my bag to check out the Dou (Mugen21 elekki) was Japan (go figure). Every other time they’ve checked it out to make sure it wasn’t a bomb, and usually ask about the bachi. They have never given me a problem after swabbing it and testing it for explosives.
Naturally, when I had the 100% acoustic dou with me, it got checked at security very rarely.
If you’re going to take the shamisen apart (and if it’s mitsu ori) I would strongly suggest getting a kaban from Kyle and Masahiro if you can, they are very convenient.
Stoked to see you guys!!