Wow. Where do you live??? I live In Tucson AZ and just was told I need a 3 fusion with a metal rod put in--cervial Stenosis--C4-6....getting a 2nd opinion first and am VERY interested in the Flexible rod! that totally makes sense. and if they use "plastic" for the disks, why can't they use it for the rod??? Please let me know if you did have it done and how it is....