Kerry Whistles Busker Alto Tunable G

The whistle is basically as good as all the other Kerry whistles (I own low D Chieftan, Optima F, The Busker G, A, Bb and high D), but this specimen was not made precisely or lacked quality control.
I had to sand the barrel down about 1.5 to 2mm because it was impossible to tune. It was too low. I needed it for recording music and no matter how tunable it was, it didn't tune to right frequency.
Another problem was the note G in the higher octave. It was relatively low compared to other notes. That's why I also had to sand the first hole with fine sandpaper and make it larger. Fortunately, the whistle is made of aluminum, so it can be easily sanded. After two hours of carefull sanding of the barrel and the first hole (while constantly checking the tuning) I was able to fix the tuning. Now it's perfect!
I wouldn't advise anyone to do these mods unless you are sure of what you are doing. Grinding one hole is possible only if the tuning is too low, and this grinding has a little effect on higher tones as well.
Considering the rather high price of the whistle, I expected better performance and quality control. If the tuning was good, the whistle would get five stars without a problem. This way the rating is lower.