All posts tell it all. Read and follow the instructions provided...they provide safety instructions for a reason! Go it slow and always practice safety. Make certain your lower stand is attached to your upper section, make certain your cables are not defective, make sure you pick a healthy tree, etc. Even when I hunt one spot where I only go up about 8 feet off the ground, I have my full body harness on! Just like wearing a seatbelt in a car...you need to use it all the time and eventually it becomes a habit...A GOOD HABIT!