In my case it hasn't been so much "get" a riding leg as adapting one of my old walking legs for the purpose. I have found that having a higher rear trimline for my walking leg retains more comfort during the day as it allows for better compression around my knee. I have the doc. put two grooves into either side of the rear for tendon clearance, as well as making a small cavity for the tibia/fibia at the end due to the rotating motion that is not there for walking. So far it's worked out well enough. Until I can come up with $10+K to purchase my own, or an insurance company that is willing to help pay for something beyond "absolutely necessary" then I do what I have to.