This is such a hot topic. Right off the bat, there is a group of people who consider kipping pull-ups to be “not real” pull-ups. For those who don’t know, kipping pull-ups are a movement in which you use your lower body to “kip” and create momentum to help you get your chin above the bar. I have a strict rule in my classes that unless you can do 5 to 10 strict pull-ups, you shouldn’t be doing kipping pull-ups. Period. Kipping can put a strain on your shoulders that, if you lack the strength, can lead to injury. When it comes to Murph, die-hard competitors and those who train for it might tackle it with strict pull-ups. I have done partner Murph with strict pull-ups, and let me tell you, those 50 stricties HURT when all was said and done.  Whichever you choose, make sure you pick a movement you can do safely for as many reps as you plan on doing.