Since using the Arcus S9 violin bow, my sound has improved immensely. The bow creates perfect stability and I feel at ease while playing. I've had a good experience playing solo with the S9 bow as well as in orchestras and chamber music groups. The bow responds well to what I want to achieve regarding richness of sound and creating variety of colors. The bow feels light but at the same time has weight which creates a dark and brilliant sound. I very much look forward using the Arcus S9 violin bow in the future.