up and it's just about how I would describe it also. I have tuned probably 30 or more of the B-20's in the past.
There is something to be aware of though. There were actually two production series of this gun. The early production serial numbers started with 0202xxxx and the later series started with 0303xxxxx. The early series were very crude with poor fitting parts and materials and had some serious problems most of which were resolved in the later production. In the days that I was doing the sales projects years ago when James Kitching and I were working together, I had to send quite a number of the early production guns back. It was no fault of James of course but of the manufacturer and importer at the time.
The late production B20's I would rate from very good to excellent for the money and I own one myself and it's my favorite gun.