A Couple of years ago I purchased a used restored Juzek violin from Bob Murphy’s Violin Shop. I got it for a song. Bob’s Shop is downstairs at Murphy’s Music having heard my son play through the floorboards he said “this Kids got talent” let me do something, so he took apart the Juzek I purchased and completely regraduated in the inside of the instrument. The violin now doesn’t play it sings! What a difference it made. I’ve heard violins that sell for tens of thousands of dollars that don’t compare to the regraduation he did on this instrument.