I'm sorry but you can't (or shouldn't!) rule out lameness if the hooves are tender - there could still be something wrong in the shoulder. Did they do flexion tests on a hard surface or soft? What flexion tests did the vet preform?
After our little chat.. well you know what I think.
Im definitely not ruling out anything im still trying to keep on eye on her, I asked my bo about the vet report and I havent gotten an email back in a while! I can't call cause there phone usually messes up/