Calisthenics Unity

I am currently using a door pull up bar that is 3 feet above my head but in Christians videos they are like so high he has to jump to reach them. Does a higher Pull-up bar make the workout harder and have more benefits and leaner results if you need to go lower?

I don't know, as long as you do full motion of the pull up you're probably good to go.. Like almost all the way down, and then chin over the bar..