Chuck, I do not know for what you speak regarding this. Yes, my Overton low d DOES have higher back pressure than most of the rest of my whistles, but nothing near "eye-popping" proportions. I kind of like having to lean into it a little bit as that allows me to control the sound with much more affect than if I was blowing through something that amounted to nothing more than an open tube!!! My Susato seems like that, so does my Jubilee.Chuck_Clark wrote:Yeah - especially once you get past the eye-popping backpressure in the upper octave......Wombat wrote:Overtons get the balance about right I think.
Oh, they are playable, but really require breath planning. Kind of like the low air whistles require.