Professor I am not understanding your concept. I am at the vibrato beginning stage. I am encompassing the Bayla Keyes captains chair bow grip along with the Menuhin side thumb Franco Belgian grip. Can you give me a correct vibrating string length in millimeters for a full size violin? I have been using 328mm but seem to be getting better vibrato with 334mm vibrating string length. Thank you for any help. Returning to violin after 40 years cessation. MANY thanks!
