I would like to express my congratulation for your bows!
The P6 are very good bows, but the S7 are really excellent. They are easy to play and their sound is pleasantly robust. Moreover, they are suitable for every kind of music. Despite its lightness the S7 stays stuck to the string. To modulate the sound is simple and every kind of bow stroke is easy with it. With the S7 you can avoid to think about technical problems and can concentrate your attention on the music.