I recently bought a Cecilio violin and have been trying my best to learn a new skill, but I became discouraged when I found that no matter how I adjusted my chin rest and shoulder rest, I couldn't hold the violin properly. I tried it without the shoulder rest, without the chin rest and every combination I could. No luck. I packed it up and put it in the closet. 

After a week of wanting to play, I broke down and  ordered a Bon Musica shoulder rest and a 17 mm Huberman Style chin rest and now I'm in heaven.  I think I could do handstands without the violin moving. I can't say enough good things about the Bon Musica. It's a great piece of equipment. Now to learn to play it!!!