Bass Clarinet - part2

The new Bass Clarinet's sound was not bad. But its pitch was low, 440hz or lower.
Especially throat G pitch was very low. The reason of low pitch was neck that was another model's neck. And perhaps this model's standard pitch was 440hz. Oh my god!
I returned lt to dealer. He shortened the neck by cutting.
I received and checked it again. Its pitch was little higher than before repair.
But the pitch problem was not quite cleared. (-_-;)