I have many customers who want to see how much the products actually help. I can give a list of all the products I am using and the results. I am not a product expert. I am just a medical doctor. If you are a person interested in medical medicine, don't let that get in your way. I have a list of some other products that work for more agility. How many people know what they are buying, let alone how much the product works for them? There is an online competition for the "Top 10 most effective mobility aids for more agility." I don't get the email list, but I am aware that it exists. When I am a patient and the doctor is asking me if I want to try a new mobility aid, I know I have to say yes. What are some other factors that contribute to success with a mobility device? We've all heard of the "1-1-1 rule" for medical devices: if it sounds good, do it. The 1-1-1 rule has been around since the '40s when we thought that having a doctor's approval was necessary. A study by the Department of Health, Education, and Welfare in 1994 suggested that in spite of the success of this rule, it could be used to restrict the use of mobility aids, particularly those used for lower back pain, to only those that didn't cause side effects.