 Here's what I have to do when I want to change my walking leg to a running blade to go for a run. First things first, take my leg off and pull out the proper tools. I'm going to unscrew all four screws that keep my walking leg in place, pop that sucker off, throw it in my car, which always looks weird, then start connecting my running blade. Now the angle here is really important, so I make sure that it's lined up properly, then I go around one by one tightening those screws. I always give it a final tighten at the end because the last thing everyone that happened is this come loose when I am running on it. Last thing I'm going to do is add a few extra leg socks. This provides padding, making it a lot more comfortable, then I just have to roll up my sleeve and I'm ready to go for a run.