I discovered something on my buck roar the other day. While practicing I noticed it did not sound the same as when I first got it. It was kind of making a buzzing and squeeking sound, so I decided to take it apart lw and behold, there was an o-ring to adjust for different calls and i moved it and it was back to normal. I know that there are other calls with the same type of adjustments, but it doesn't indicate this feature on the package or the video. So if your buck roar seems to sound a little funny check out the reed o-ring. Maybe I'm telling you something everybody already knows, but I'm still learnin' this stuff.