Split tenjin! Chipped itogura affecting sawari!

Well, F*dEx broke my Shamisen, the luthier tried their best, but, should I just use
wood-filler to fill up that biiiig gap shown in the picture?

I don’t have an answer but did the luthier explain why he or she didn’t repair that spot?

Hallo, not at all, but did explain why he couldn<t sand down the cracks

Seems like the OP’s question flew under the radar…

Did you try the wood filler?

Hallo, not yet, just bought some Quikwood, so waiting for delivery…