I recently acquired a full Boehm Selmer Centered Tone in need for some care.
The clarinet has sit unused for a number of years but otherwise is not in bad shape. The most "disturbing" thing is that the barrel is not original and it's from a Series 10 clarinet (by the way: who, in Europe, is able to make a barrel with the correct bore diameter? Or where to buy it?)
I was able to play some notes, after oiling the bore. No more than a couple of minutes to avoid cracking the instrument, but I found something quite strange.
The S10 barrel is 67mm long, whereas most reports I can read on internet speak of very short barrels to reach a good intonation with the Centerer Tone (62mm is a dimension that's often cited). Nevertheless I had to pull it out around 5mm to play in tune. At that point the instrument was pretty much in tune throughout the registers...
I refuse to think that it needs a 72mm barrel and I'm prone to think that the gap between the barrel and the upper joint compensated for the lack of volume in the narrow-bore barrel.
Could it be possible?