Hoping someone may have some suggestions/advice. It's very difficult to play 1/16 notes on the same string and keep the bow hairs grabbing the string enough to avoid getting a scratchy sound. Even at around 50 bpm it's very difficult (e.g., some of the open string exercises in Rufus's book). The scratchy sound I'm getting doesn't sound horrible but it bugs me because it doesn't feel like I'm getting good full notes like when I play longer tones. I'm managing getting a good sound playing through the Simandl stuff I'm working on but it's a lot of work to keep from getting a scratchy sound. I'm more of a pizz guy and have my bass setup with medium string height and Spirocore Orchestras. I'm using Carrlsons rosin and one of Bob G's German bows. Is it just going to be impossible to get the arco sound I want with the Spiros? I'm thinking of changing to a hybrid string like the Dominants. The thing is that I love the sound of the Spiros for jazz/pizz playing. Not sure if this is an Orchestra Technique thread or a Strings thread so mods please feel free to move it. Thanks in advance!