Holy $#@$ Joe! This OPEN SKY SL has everything that I love about my missing link only more. It’s so agile especially altissimo but it articulates faster and gives me control further back in my mouth. It’s the most tonally flexible piece I’ve ever tried. My history with it is only about 30 minutes so far but it feels like it knows me. After so many years on the missing link you made me I’m surprised at how quickly I have made myself at home. But it’s amazing how the SL stays out of the way. Thanks so much for this masterpiece!!