I am auditioning 4 bows from shar music and while I have nearly chosen a Pernambuco one, something is bothering me all together. While playing, there is a point where the high harmonics overtake the core bass note. If I wanted a cello register, that is what I would have picked up. I have been told that my form is rather good by my on again off again teacher. I have 4 month old helicore hybrid string on the bass and it is a chinese hybrid instrument. With pizz she sounds great. anyone have a clue why I would be having so much high octave coming through when playing?