As a prosthetist, As a guy who fixes problems with artificial limbs on a daily basis, and as a friend to many amputees I beg you to please try on a sock when your socket is not fitting properly. It will cut headaches out of both of our lives. If it doesn't work no problem, head into see your prosthetist but at least we know you tried. With technology we are finding we can stabilize the residual limb more and more. Elevated Vacuum, or true vacuum sockets are becoming increasingly popular and more and more amputees are using them every day. These systems cut almost all volume change out of the picture but it still can be a problem.