I had the TSA (forerunner of Homeland Security) break my soprano at the Los Angeles Airport security station. Luckily it was after a concert. Mine's just a mid-quality Yamaha but I feel your pain. What do you have?
It's a Hanson LX, handmade in Marsden, Yorkshire, UK by Alaister Hanson and his team, who have won awards for sustainable wood clarinets. The LX is their top-of-the-range instrument, I also have the Hanson LX tenor.
It was especially engraved with my father's birth and death dates, as I bought it with money he left me. So to say it's special, is an understatement.
Could you please attach your BIAB song file, the MGU or SGU file? Let me look at that.
I will certainly try - although some head-scratching may be involved and thanks again for offering.
