These 2 pull up bar&band moves are awesome! They’re great because you’re modifying in a way that allows you to go through the full range of motion that the actual move requires! These are great way to work up to doing full pull ups and pistol squats. In the pull up, the stronger you get the lower resistance band you use so you can progressively make it harder until you can do the real deal. Putting your knee in the band instead of your foot is also a way to make it more challenging because it creates less tension in the band! Make sure to only use the bands for balance during the pistol squat and not to help pull yourself up so you get the most out of it for your legs and butt!