Another way to get more flexibility gains for your splits is to use the wall. Lay on your back with your butt against the wall and your legs up on the wall. For more intensity put light ankle weights on. You slowly open your legs in a "V" as far as they will go and just stay there for some minutes. Try to keep your knees straight and toes pointed. After the initial tightness goes away, open your legs more. Do this for 5 minutes. To get up, close legs while bending your knees rolling to one side and sit up. Try it. You will be amazed at the progress you will make.